The flask will have the greatest number of collisions per second with the walls of the container is Flask A: CO at 760 torr and 0 °C.
The Collision of the molecules with the wall of the container will be depend on the pressure. Therefore, the flask with the highest pressure have the greatest no of the collisions. As flask A has the highest pressure of 760 torr, Therefore, the flask A has the greatest number of the collusions per second with the walls of the container.
Thus the flask A with CO gas will have the greatest number of collisions per second with the walls of the container.
This question is incomplete, the complete question is :
Consider three identical flasks filled with different gases.
Flask A: CO at 760 torr and 0 °C
Flask B: N₂ at 250 torr and 0 °C
Flask C: H₂ at 100 torr and 0 °C
which flask will have the greatest number of collisions per second with the walls of the container?
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two liquids are poured in a container and mixed. a solid forms and settled to the bottom of the container. what can you conclude?
When two liquids are poured in a container and mixed, the solid that is formed and settles to the bottom of the container is called a precipitate.
Precipitates formed in a chemical reaction are the solid products of the reaction. They are insoluble in nature and exists as ionic solids. They are so formed by the combination of cations and anions when two different liquids are poured together.
Not all aqueous solution mixtures form precipitates. The extent of precipitation depends on certain factors such as temperature, concentration of solution and buffer solutions used.
The precipitates settle at the bottom of the aqueous solution.
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cience
decribe the exual reproductive of flowering plant like the gumamela flower by
creating your own tory
By using the pollen from male flowers to fertilize female blooms, the gumamela reproduces.
One variety of hibiscus is the gumamela. Pollination allows the wild hibiscus species to procreate. When pollen from male flowers is spread to female flowers, the process is known as pollination. This is usually done by the wind or other animals. To draw pollinators that will aid in reproduction, large, vibrant flowers are frequently used.
Bees, butterflies, and birds are some of the more popular pollinators, though there are many other varieties as well. These critters are drawn to the nectar in flowers, which provides them with the energy to fly or buzz from one flower to the next. Pollen, which eventually results in fertilization and reproduction, is dispersed when they are moving around collecting nectar.
In rare circumstances, wind can also assist in pollination. In general, the reproduction process in wild hibiscus species is a complicated one that involves a wide variety of organisms and environmental conditions.
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you are working with a specific enzyme-catalyzed reaction in the lab. you are a very careful experimentalist, and as a result, at the beginning of each of your experiments, you measure the temperature in the lab. on days 1 through 5, the temperature in the lab was 20oc. today is day 6 of your experiment, and the temperature in the lab is 30oc. how do you predict that this will alter the rate of your enzyme-catalyzed reaction?
The rate of enzyme-catalyzed reactions typically increases as increase in temperature. Therefore, it is possible that the rate of your enzyme-catalyzed reaction will be faster at 30°C than it was at 20°C.
What are different types of catalysts?Catalysts can be classified as homogeneous, heterogeneous, or enzymatic. Homogeneous catalysts live in the same phase as the reactants, while heterogeneous catalysts exist in a different phase than the reactants.
What is enzyme catalysis?Enzyme catalysis is the upsurge in the rate of a process by a biological molecule, an enzyme. Most enzymes are proteins, and most such processes are chemical reactions. Within the enzyme, generally catalysis occurs at a localized site, called the active site.
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If 7.12 mol of ethane (C2H6) undergoes combustion according to the unbalanced equation
C2H6 + O2 −→ CO2 + H2O,
how many moles of O2 are required?
Taking into account the reaction stoichiometry, 2.03 moles of C₂H₆ are required if 7.12 mol of ethane (C2H6) undergoes combustion.
Reaction stoichiometryThe balanced reaction is:
2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
C₂H₆: 2 molesO₂: 7 molesCO₂: 4 molesH₂O: 6 molesMoles of O₂ requiredIt is possible to use a simple rule of three as follows: If by reaction stoichiometry 7 moles of O₂ react with 2 moles of C₂H₆, 7.12 moles of O₂ react with how many moles of C₂H₆?
moles of C₂H₆= (7.12 moles of O₂× 2 moles of C₂H₆)÷7 moles of O₂
moles of C₂H₆= 2.03 moles
Finally, 2.03 moles of C₂H₆ are required.
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Your Space Station launches a second probe into a new region of space and observes that shortly after launch the probe's direction changes. The crew assumes they've detected the Alien Death Moon. Describe why a change in the probe's direction causes the crew to suspect the Allen Death Moon is near.
The Alien Death Moon is an enigmatic and powerful cosmic entity that has the ability to alter the trajectories of objects in its vicinity.
What do you mean by trajectories?
Trajectories refer to the path that an object takes over a period of time. This can refer to the physical path of an object moving in space or the path of an object's energy, such as the path of sound through a speaker. Trajectories can also refer to the path of a person's life, such as the trajectory of their career or life decisions.
Its gravitational pull is so strong that it is able to redirect the paths of objects that come close to it, including the Space Station's probe. The sudden change in the probe's direction is an indication that it has been affected by the Alien Death Moon's gravitational pull, prompting the crew to suspect its presence.
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carbon dioxide is sold in steel cylinders under a pressure of approximately 20 atm. is there liquid co2 in the cylinder at the following temperatures? if not, what phase(s) is present?
Under pressure, gaseous CO2 can liquefy as long as its temperature is below the critical point, which is 31 °C (87,8 °F). A colorless fluid with roughly the same density as water is created when a substance is squeezed and chilled below the critical point.
What is CO2?When two oxygen atoms are fused with one carbon atom, the result is carbon dioxide. It is commonly referred to by its chemical formula, CO2, rather than by its name because it is almost as well-known as the chemical formula for water, H2O.Carbon dioxide serves as the link in the natural food chain that keeps plant and animal life mutually dependent. This gas, which is necessary for plants to survive, is released every time humans breathe. The separation of carbon from oxygen by photosynthesis occurs in plants. Our bodies require pure oxygen to survive, which is released by plants. By reversing the process, we create carbon dioxide once more by fusing oxygen with the carbon from the food we eat.The atmosphere of the planet contains 0.03 percent of CO2, an inert, colorless gas that is 1 1/2 times heavier than air. It lacks smell, tastes like sweet soda water, and is quite stable (difficult to separate).By burning fuels with a high carbon content, a frequent process, it is created in different amounts. The most prevalent fuel for combustion is oil, which, when combined with the right amount of air, burns to produce 15% or less CO2 in the flue gases of a CO2 plant. After combustion, the CO2 can be extracted from the exhaust gases and made available for the various industrial uses to which it can be put. This can be done by a straightforward procedure.Three types of CO2 are possible:- as gaseous materials: for the food and beverage sectors
- liquid: in a pressure-containing storage tank
- as dry ice when it is solid (for cooling, blasting etc.).
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Here are some last minute questions I need help with !
The balanced equations of the reaction are given below:
Overall equation: 2 H_O → H₂O₂ (l)
Equation 1: H_O ---> H_O (g)
Equation 2: H_O (g) → H₂O₂ (g)
Equation 3: H₂O₂ (g) → H₂O₂ (l)
What are balanced chemical equations?A balanced equation is an equation of a chemical reaction in which the number of moles of atoms for all the elements in the reaction is equal on both sides of the reaction.
A balanced chemical equation is obtained from the law of conservation of matter that states matter can not be created or destroyed.
Balancing chemical equations involves the addition of numerical coefficients to the reactants and products.
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Suppose that an electric current flows in a straight wire. The current changes so that it flows in the opposite direction. What changes occur in the magnetic field, and what stays the same?
When electric current flows in a straight wire, then it generates magnetic field around the wire. Direction of the magnetic field changes, but the strength of the magnetic field stays the same.
What changes occur in the magnetic field?If the current changes direction, then the direction of the magnetic field will also change. This is because the direction of magnetic field is determined by the direction of current flow, and when current flow is reversed, then the direction of the magnetic field will also be reversed.
The strength of the magnetic field will remain the same, assuming that current remains constant. This is because the strength of magnetic field is determined by the magnitude of the current and not its direction.
So, the direction of the magnetic field changes, but the strength of the magnetic field stays the same.
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(a) what factors determine whether a collision between two molecules will lead to a chemical reaction? (b) ac- cording to the collision model, why does temperature affect the value of the rate constant?
The collision's energy and the way the molecules are positioned at the time of contact. The molecules move faster and possess more KE at extremely high temperatures. Consequently, there are more collisions.
What happens when reaction happens?one or more new elements are formed as a result of the reorganization of the atoms or molecules of two substances when come into contact. Electrons of one material interact with some of those of another to produce chemical reactions.
What is an example of a chemical reaction?Reactants participate in a chemical reaction and turn into byproducts through a chemical change in a chemical reaction. Inhaling oxygen, by instance, results in the creation of atmospheric co2, water, and energy when combined with glucose.
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A reaction produces 88. 5 mol H2. What would the volume of this much Hą be at STP? 2 points Vour answer
A process yields 88. 5 mol H2. 88.5 moles of H2 at STP have a volume of 24,564.8 L (24.564 m3). A system's volume is a crucial and detailed parameter for defining its thermodynamic state.
The Ideal Gas Law, which says that PV = nRT, may be used to determine the volume of a gas at standard temperature and pressure (STP), where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. The temperature and pressure are both equal to 1 atm at STP (273.15 K).
Therefore, we can apply the following calculation to get the volume of 88.5 moles of H2 at STP:
V = nRT / P
V is equal to (88.5 mol) x (8.314 J/mol K) x (273.15 K) /. (1 atm)
V = 24,564.8 L
Therefore, at STP, 88.5 moles of H2 have a volume of 24,564.8 L (24.564 m3).
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Antimony is burned in oxygen to form antimony oxide.
4 Sb + 3 O2→ 2Sb2O3
How many moles of Sb2O3 will be formed when you have 20. 0 moles of O2?
In the equation, 4 moles of antimony react with 3 moles of oxygen to form 2 moles of antimony oxide. Therefore, when 20 moles of oxygen are present,
20/3 = 6.66 moles of antimony oxide will be formed.
In the given chemical equation, for every 3 moles of oxygen (O2), 2 moles of antimony oxide (Sb2O3) are produced. Therefore, to determine the number of moles of Sb2O3 that will be formed from 20.0 moles of O2, we can use the conversion factor between moles of O2 and moles of Sb2O3. To do this, we divide the number of moles of O2 by the coefficient of O2 on the reactant side of the equation, which is 3. So 20.0 moles O2 / 3, moles O2/1 mole Sb2O3 = 6.66 moles of Sb2O3 will be formed.
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at ph 7.4, most of the common amino acids have a net charge close to…
Since the isoelectric point (pI) of the majority of common amino acids is 7.4, the pH is neutral. The balance of acidic and basic groups on an amino acid determines its pI, which is the pH at which the amino acids
The building components of proteins are amino acids. They consist of an alpha carbon atom in the centre, to which bonds have been formed with amino, carboxyl, hydrogen, and a special side chain (R group). There are 20 different kinds of amino acids with distinct R groups that may be integrated into proteins. A broad variety of interactions between amino acids in a protein are made possible by these R groups, which also give amino acids their distinctive characteristics, such as being hydrophobic or hydrophilic. A protein's three-dimensional shape and function are determined by the amino acid sequence of the protein. In the body, proteins carry out tasks including catalysing metabolic processes, reproducing DNA, reacting to stimuli, and transporting chemicals.
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3. When neither air masses can overpower each other and may not move
for a long time.
1) warm front
2)cold front
3)occluded front
4)stationary front
When neither air mass can overpower the other and therefore cannot move the option 4- stationary front
A stationary front is a weather boundary where two air masses meet and neither one can overpower the other, resulting in little or no movement of the front. This can lead to prolonged periods of cloudy, damp, and often unstable weather. Warm fronts, cold fronts, and occluded fronts are all types of frontal systems that can move across a region, while stationary fronts tend to remain in a specific location for an extended period of time.
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Agree or Disagree? Why?
While standing on the
beach during the
daytime, the breeze
always blows from the
land, because the land
is cooler than the sea
during the daytime.
Answer:
Explanation:
I'm sorry, but I disagree with the statement because the direction of the breeze is not solely determined by the difference in temperature between the land and sea. The direction of the breeze is influenced by a variety of factors such as the pressure system, the prevailing wind patterns and the shape of the land. During the daytime, sea breeze is a common phenomenon, which is caused by the land heating up faster than the ocean, and as the hot air rises, it creates a low-pressure system over the land, drawing in cooler air from the ocean. So, the breeze can blow from the land or sea during the daytime, it's not always blowing from the land.
how much of a radioactive kind of actinium will be left after 132 years if you start with 301,184 grams and the half-life is 22 years?
A radioactive kind of the actinium will be left after 132 years if you start with 301,184 grams and the half-life is 22 years is 4706 g.
A radioactive actinium element is 301184 grams and have the half-life of 22 years :
The formula to calculate the half life is;
N(t) = N₀e⁻ˣ
N(t) = amount of substance after the time t
N₀ = initial amount of the substance
x = time
Putting the values, we get
N(t) = 301184(1/2)¹³²/₂₂
N(t) = 301184 (1/2)⁶
N(t) = 4706 g
Thus, the amount of the actinium will be left after the 132 years is 4706 g.
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what is the cytoplasm funtion
Answer:
All the chemical reaction take place in cytoplasm.Cell expansion,growth and replication occurs in cytoplasm.
one of the reasons absorbance is so useful for chemists is because it allows us to find the concentration of a solution if we know the molar absorptivity. if the absorbance of a new blue dye solution is 0.96 what is the concentration of that solution in
Absorbance is a measure of how much light a substance absorbs and is often used by chemists to determine the concentration of a solution.
This is because the absorbance of a substance is directly proportional to its concentration, if the molar absorptivity is known. The molar absorptivity is a property of the substance and is usually provided in literature or can be determined experimentally.
In this case, if the absorbance of a new blue dye solution is 0.96 and the molar absorptivity is known, the concentration of the solution can be calculated using the Beer-Lambert Law (A = ε * b * c). This law states that the absorbance (A) of a solution is equal to the product of the molar absorptivity (ε), the path length (b) of the cuvette, and the concentration (c) of the solution.
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Ionic bonding
Chemistry
The images of the ionic bonds of the compounds is shown in the image attached.
What is ionic bonding?If we are talking about the ionic bonding model, what we mean is that in this kind of bonding. there is the transfer of electrons from the metals to the non metals. In this process, the metal would be positively charged while the non metal would be negatively charged.
As such, in the case of the potassium bromide, we can see from the image that electrons are transferred from potassium to bromine while electrons are transferred from aluminum to chlorine.
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if you had excess aluminum, how many moles of aluminum chloride could be produced from 37.0 g of chlorine gas, cl2 ?
0.69 moles of aluminum chloride could be produced from 37.0 g of chlorine gas (cl2).
To determine how many moles of aluminum chloride (AlCl3) can be produced from 37.0 g of chlorine gas (Cl2), you need to use the balanced equation for the reaction between aluminum and chlorine:
2 Al + 3 Cl2 -> 2 AlCl3
You know that the molar mass of chlorine is 35.5 g/mol. So you can convert 37.0 g of chlorine to moles by dividing it by the molar mass.
37.0 g Cl2 / 35.5 g/mol = 1.04 mol Cl2
Using the balanced equation, you can see that for every mole of aluminum, 3 moles of chlorine are needed to form 2 moles of aluminum chloride. Therefore, you can find the moles of aluminum chloride produced by multiplying the moles of chlorine by the coefficient of aluminum chloride in the balanced equation, which is 2.
1.04 mol Cl2 * 2 / 3 = 0.69 mol AlCl3
So, you can produce 0.69 moles of aluminum chloride from 37.0 g of chlorine gas.
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in this reaction, if a total of 10.0 g of zinc and hydrochloric acid react completely, what is the total mass of the products produced? zn(s) 2hcl(aq) zncl2(aq) h2(g) select one: a. exactly 10.0 g b. greater than 10.0 g c. less than 10.0 g d. not enough information to tell
The total mass of the products is 21.004 g. The correct option is C.
Observe the balanced equation and use the mol ratios to determine the mols of product (zinc chloride) and hydrogen (hydrogen) produced. Then use the molar mass of zinc chloride and hydrogen to convert mols to grams.
The balanced chemical reaction is given as,
Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)
10.0 g Zn x 1 mol Zn / 65.4 g = 0.152 mols of Zn
0.152 mols Zn x 1 mol ZnCl₂ / 1 mol Zn = 0.152 mols ZnCl₂ produced
Convert the mass of zinc chloride into mass.
0.152 mols ZnCl₂ x 136 g / mol = 20.7 g ZnCl₂ produced
0.152 mols Zn x 1 mol H2 / mol Zn = 0.152 mols H₂
Convert the mass of hydrogen into mass.
0.152 mols H₂ x 2 g / mol = 0.304 g H₂ produced
Total mass of the products is 20.7 + 0.304 = 21.004 g
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Answer:
B. greater than 10.0 g
If 76.4 grams NH4Cl and 85 grams Ca(OH)2 are reacted together, which is the limiting reactant? (Use your answers from #1-2 to answer this question.)
CaCl2
NH3
Ca(OH)2
NH4Cl
Other:
Taking into account definition of limiting reactant, if 76.4 grams NH₄Cl and 85 grams Ca(OH)₂ are reacted together NH₄Cl is the limiting reastant.
Reaction stoichiometryIn first place, the balanced reaction is:
2 NH₄Cl + Ca(OH)₂ → 2 NH₃ + CaCl₂ + 2 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
NH₄Cl: 2 molesCa(OH)₂: 1 moleNH₃: 2 molesCaCl₂: 1 mole H₂O: 2 molesThe molar mass of the compounds is:
NH₄Cl: 53.45 g/moleCa(OH)₂: 74 g/moleNH₃: 17 g/moleCaCl₂: 110.9 g/moleH₂O: 18 g/moleBy reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
NH₄Cl: 2 moles ×53.45 g/mole= 106.9 gramsCa(OH)₂: 1 mole ×74 g/mole= 74 gramsNH₃: 2 moles ×17 g/mole= 34 gramsCaCl₂: 1 mole ×110.9 g/mole= 110.9 gramsH₂O: 2 moles ×18 g/mole= 36 gramsLimiting reagentThe limiting reactant is the one that, in a chemical reaction (where there are reactants and products), ends first. If one of the substances runs out, since it is consumed during the process, the reaction will stop because the reactant limits the possibility of the reaction going ahead and therefore also limits the amount of product that is generated by the reaction.
Limiting reagent in this caseTo determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 74 grams of Ca(OH)₂ reacts with 106.9 grams of NH₄Cl, 85 grams of Ca(OH)₂ reacts with how much mass of NH₄Cl?
mass of NH₄Cl= (85 grams of Ca(OH)₂× 106.9 grams of NH₄Cl)÷ 74 grams of Ca(OH)₂
mass of NH₄Cl= 122.79 grams
But 122.79 grams of NH₄Cl are not available, 85 grams are available. Since you have less mass than you need to react with 85 grams of Ca(OH)₂, NH₄Cl will be the limiting reagent.
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Question 8 of 25
How many grams of NaOH will react with 507 g FeCl2 in this reaction?
FeCl₂ + 2NaOH → Fe(OH)2(s) + 2NaCl
OA. 160 g NaOH
OB. 320 g NaOH
OC. 444.25 g NaOH
OD. 1014 g NaOH
The number of grams of NaOH that will react with 507g of FeCl₂ is 320 grams.
How to calculate mass using stoichiometry?Stoichiometry is the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).
According to this question, iron chloride reacts with sodium hydroxide to produce iron hydroxide and sodium chloride as follows:
FeCl₂ + 2NaOH → Fe(OH)₂ + 2NaCl
1 moles of FeCl₂ reacts with 2 moles of NaOH
507g of FeCl₂ is equivalent to 507g ÷ 126.751 g/mol = 4 moles
This means that 4 moles of FeCl₂ will react with 8 moles of NaOH.
Mass of NaOH = 40g/mol × 8moles = 320grams.
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you need to make an aqueous solution of 0.178 m silver fluoride for an experiment in lab, using a 500 ml volumetric flask. how much solid silver fluoride should you add?
You should add 0.089 mol of silver fluoride to the 500 ml volumetric flask to get the desired concentration.
To make an aqueous solution of 0.178 M silver fluoride, you need to add a certain amount of silver fluoride to a known volume of water.
Since you want to make a 500 ml solution and the desired concentration is 0.178 M, you can use the formula:
molarity = moles of solute/liters of solution
Rearranging this equation to solve for moles of solute:
moles of solute = molarity x liters of solution
Therefore, to make a 0.178 M solution, you need to add:
moles of solute = (0.178 mol/L) x (0.5 L) = 0.089 mol
So you should add 0.089 mol of silver fluoride to the 500 ml volumetric flask to get the desired concentration.
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Do my science project for me pls
I would do it myself but I don't have the materials to do it :(
Answer: Okay, what do you have todo? And what do you need todo it?
Explanation: I'll do it for you.
Two identical blocks are heated to different temperatures. The blocks are placed so that they touch, and heat begins to flow between the blocks. The pair of blocks is insulated, so no energy escapes. Later, the temperature of each block is measured again. Which pair of temperatures is possible.
PLEASE HURRY.
When two items of different temperatures come into touch with one other, energy is transferred from the hotter (higher temperature) object to the colder (lower temperature) object until both objects reach the same temperature.
What is the term for when two materials that are in contact transfer heat until they achieve the same temperature?Conduction occurs when two materials or objects come into direct touch with one another. The warmer object's molecules vibrate quicker than the cooler object's. The molecules that vibrate faster clash with the molecules that vibrate slower. This causes the colder molecules to vibrate faster, warming the item.
This signifies that the substance's constituent material is a third component.
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3. If Earth's glaciers were to melt, what would be the most likely effect Florida?
A. coastal flooding
B. till deposition
C. increased acid rain
D. an out wash plain
please answer!!
Answer:
An out wash plain
Explanation:
"Well if glaciers were to most likley melt wit would have a big affect on the world. But on Florida the affect would be as everybody would expect, a flash flood, with high water's and everything under water. AND there would most lilkley be something in the glacier. Not highly sure about it though"
Answer: A. coastal flooding. If Earth's glaciers were to melt, it would cause sea levels to rise, which would lead to coastal flooding in Florida and other low-lying coastal areas.
at what gas temperature te would the average translational kinetic energy of a hydrogen molecule be equal to that of an oxygen molecule in a gas of temperature 300 k?
At a gas temperature of 300 K, the average kinetic energy of a hydrogen molecule is equal to that of an oxygen molecule.
A molecule or gas particle's average kinetic energy is proportional to its absolute temperature, and this relationship is represented by the equation [tex]KE_{avg}=\frac{3 k__BT}{2}[/tex]. Here, [tex]k_B[/tex] is used to represent the Boltzmann constant, and T is used to represent the temperature.
In the given situation, the average kinetic energy depends mostly on the gas molecule's temperature and not its type. At the same temperature, [tex]\mathrm{KE_{avg}\;of\;oxygen=KE_{avg}\;of\;Hydrogen}[/tex]. Then, the temperature of hydrogen is also equal to that of the temperature of oxygen. Therefore, [tex]\mathrm{T_{O_2}=T_{H_2}}=\mathrm{300\;K}[/tex].
The required answer is 300 K.
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The production of smog from the chemical NO requires _____
chlorine
nitrogen
water
oxygen
cfcs
how is it that atoms with more electrons, more to the right, can be smaller than those with fewer electrons, on the left side?
The atomic size is determined by the interaction of these two factors, the amount of protons and the shielding effect.
What are electrons?The subatomic particles known as electrons orbit the atomic nucleus of an atom and are negatively charged. They are one of the basic building blocks of matter.
The atomic radius, also known as the separation between the nucleus and the outermost electrons, determines the size of an atom.
The number of protons in the nucleus, which defines the atomic number and, consequently, the number of electrons in the atom, as well as the electrons' energy level, are two parameters that have an impact on the atomic radius.
Because more electrons will occupy higher energy levels farther from the nucleus as the number of electrons grows, atoms with more electrons will typically have a bigger atomic radius than atoms with fewer electrons.
However, the amount of protons in the nucleus rises as you move across a period (left to right) in the periodic table, which intensifies the attraction of electrons to the nucleus. The atomic radius decreases as a result of the electrons moving in closer proximity to the nucleus.
Furthermore, as the number of electrons in an atom rises, the shielding effect of inner electrons rises as well. As a result, the outer electron will experience a reduced nuclear charge, which causes the electron to be further away from the nucleus and enlarges the atom.
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a 25.000 g saple of sulfur is burned. some of the sulfur reacts to form so2. the rest of the sulfur reacts to form so3. the total mass of the products (so2 and so3) is 58.723g. calculate the masses of so2 and so3 in this mixture
The mass of sulfur dioxide (SO₂) is 64.06 grams, and the mass of sulfur trioxide (SO₃) is 160.12 grams.
To calculate the masses of SO2 and SO3 in this mixture, we need to use the balanced chemical equations for the reactions and the information about the total mass of products. First, we can calculate the number of moles of sulfur that was burned by dividing the mass of the sample by its molar mass:
25,000 g / 32.06 g/mol = 777.7 mol
Next, we can use the balanced equations to determine the stoichiometry of the reactions. From the first equation, we know that 1 mole of sulfur (S) reacts to form 1 mole of sulfur dioxide (SO₂):
1 mol S + 1 mol O₂ → 1 mol SO₂
From the second equation, we know that 2 moles of sulfur (S) reacts to form 2 moles of sulfur trioxide (SO₃):
2 mol S + 3 mol O₂ → 2 mol SO₃
By using the information from the balanced equations and the number of moles of sulfur, we can find the number of moles of SO2 and SO3 that are formed:
SO₂: 1 mol S × (1 mol SO₂ / 1 mol S) = 1 mol SO₂
SO₃: 2 mol S × (2 mol SO₃ / 2 mol S) = 2 mol SO₃
Finally, we can use the number of moles of SO₂ and SO₃ to find the masses of SO₂ and SO₃ in the mixture:
SO₂: 1 mol × (64.06 g/mol) = 64.06 g
SO₃: 2 mol × (80.06 g/mol) = 160.12 g
Therefore, the mass of sulfur dioxide (SO₂) is 64.06 grams, and the mass of sulfur trioxide (SO₃) is 160.12 grams in this mixture.
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Your question seems incomplete, but I suppose the full question was:
"A 25,000 g sample of sulfur is burned. Some of the sulfur reacts to form SO₂: S + O₂ → SO₂ The rest of the sulfur reacts to form SO₃: 2 S + 3 O₂ → 2 SO₃ The total mass of products (SO₂ and SO₃) is 58.723 g. Calculate the masses of SO₂ and SO₃ in this mixture."