The amount of oxygen gas required to react with 3 mol of ammonia is equal to 2.25 mol.
What is the balanced chemical equation?A chemical equation can be described as an expression of a reaction in terms of reactants and products. A chemical equation exhibits reactants, formed products, their physical states, and an arrow showing the direction of the chemical reaction.
A balanced equation possesses an equal number of atoms of each element is equal on either side of the equation. The law of conservation of mass follows a chemical equation during balance. The number of moles of reactants is calculated in stoichiometry.
Given the chemical equation of the reaction of oxygen and ammonia
[tex]2NH_3 +\frac{3}{2} O_2 \longrightarrow N_2 + 3H_2O[/tex]
The 2 mol of ammonia reacts with oxygen gas = 1.5 mol
Then 3 mol of ammonia reacts with oxygen gas = (1.5/2) × 3 = 2.25 mol
Therefore, the moles of oxygen gas required to react with 3 mol of ammonia is 2.25 mol.
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Which of the following describes a species with the greatest fitness?
The species that can reproduce beter than the others
The species that is faster than the others
The species that is stronger than the others
The species that is larger than the others
Answer:
C is it!
Explanation:
Determine the pressure of a 6.4L sample of oxygen gas at 300K and 100KPa, after the gas is compressed to 2.40L at 900K.
The pressure : 800 kPa
Further explanationBoyle's law and Gay Lussac's law
[tex]\tt \dfrac{P_1.V_1}{T_1}=\dfrac{P_2.V_2}{T_2}[/tex]
P1 = initial gas pressure (N/m² or Pa)
V1 = initial gas volume (m³)
P2 = gas end pressure
V2 = the final volume of gas
T1 = initial gas temperature (K)
T2 = gas end temperature
The pressure after the gas is compressed :
[tex]\tt \dfrac{100\times 6.4}{300}=\dfrac{P_2\times 2.4}{900}\\\\P_2=800~KPa[/tex]
how many electrons are in the second ring of sodium
Answer:
there are eight electrons
A runner eats a snack with 375 Calories of nutritional energy. After her snack, she burns 3.16 x 10^6 joules while running
Answer:
The complete question is given below
A runner eats a snack with 375 Calories of nutritional energy. After her snack, she uses 3.16 X 106 joules while running [1 Calorie = 4184 joules).
Which of the following statements are true? Select all that apply.
A. There were 1.57 X 106 joules of energy in the snack.
B. There were 3.14 X 106 joules of energy in the snack.
C. During her run, she used 755 Calories of energy.
D. During her run, she used 189 Calories of energy.
E. The runner used more Calories while running than she consumed during her snack.
F The runner used fewer Calories while running than she consumed during her snack.
Answer: Options A, C and E are all correct options
Explanation:
From the question,
1 calorie = 4184 Joules
therefore 375 calories from the consumed snack
= (4184 x 375) J
= 1,569,000J
= 1.56 x 10⁶ J (option A is correct)
While running, she expends 3.16 x 10⁶ J. We can convert this to calories to see how much calories she expended while running
Recall 4184 Joules = 1 calorie
therefore, 3.16 x 10⁶ Joules is equivalent to
= (3.16 x10⁶/ 4184) calories
= 755.6 calories (option C is also correct)
If she consumes 375 calories from her snack but expended 755 calories during her running exercise, therefore the runner consumed fewer calories than what she expended during her exercise, hence option E is also correct
Answer: Options A, C and E are all correct options
2)
The temperature 30. K expressed in degrees Celsius is
A)
243°C
B)
-243°C
C)
303°C
D)
-303°C
Answer:
B
Explanation:
From Celsius to Kelvin add 273
From Kelvin yo Celsius subtract 273
Hence 30 - 273 = -243
the following body systems is responsible for releasing waste?
Answer:
the urinary system??
Explanation:
QUESTION WITH ANSWER...
Which system is used to measure physical properties? Most scientists use the (BLANK) system, also known as the metric system, to measure physical properties of elements.
THE ANSWER IS: Standard International system
Standard International system is a system is used to measure physical properties.
Which system is used to measure physical properties?
The International System of Units (SI), is commonly known as the metric system. This system is used as the international standard for measurement. Most scientists use the International System of Units which is also known as the metric system in order to measure physical properties of elements. The metric system is a system of measurement that uses meter as base units of length (distance), liter for volume, and , and gram for weight or mass. We use units that are derived from the metric units in order to measure smaller or larger quantities.
So we can conclude that Standard International system is a system is used to measure physical properties.
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"Can you get tan from a campfire?".
Answer: You could if you had a special fire letting out UV light, but if not, you'd probably get burned first.
Explanation:
Fire does emit UV, which causes tanning, but it also emits a lot of other wavelengths, including infrared which is primarily responsible for heating. If you build a really big fire, one that would emit enough UV to tan, it would also emit a huge amount of infrared which will burn you sooner than you getting a tan.
No, you cannot get a tan from a campfire. A tan is a result of exposure to ultraviolet (UV) radiation, specifically UVB rays, which are primarily emitted by the sun. UVB rays penetrate the skin and stimulate the production of melanin, a pigment that darkens the skin as a protective response.
A campfire does not emit significant amounts of UV radiation. The light emitted by a campfire is primarily in the visible spectrum, which does not have the same wavelength as UVB rays. Therefore, sitting near a campfire will not provide the necessary UV radiation to induce tanning.
Campfires can emit infrared radiation, which can generate heat and potentially cause burns or damage to the skin if one is too close for an extended period.
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Which atom is a carbon atom?
A
B
C
what is electron shielding?
Answer:
Electron shielding is when the inner electrons shield the outer electrons from the full force of the nucleus
Round the number 31.257592 to 5 significant figures.
Explanation:
Highlight the first 5 digits. You should highlight 3, 1, 2, 5, and 7 in that order.
Note the next digit after that is a 5, meaning we'll round that 7 up to 8
So 31.257592 becomes 31.258 when we round to five significant figures.
Fossils of sea creatures have been found near the top of Mount Everest (8848m above the sea level). How do you think they could have got there?
Answer:
Continental Drift
Explanation:
The fossils of sea creatures could have reached the top of Mount Everest due to the continental drift theory suggested by geophysicist, Alfred Wegener. To exaggerate, a piece of evidence that supports Wegener’s hypothesis towards a continental drift is the fact that fossils of sea creatures can’t just end up in any random place like Mount Everest. He suggests that there must be something behind this and gradually it led to his well-known theory. His hypothesis towards a continental drift suggests that his second observation was that fossils of the same prehistoric species were found in different continents that were way apart. There was just no way that all the organisms could cross the oceans and reach all of these places.
why do you think you can find silver and gold on their own in rocks but calcium and magnesium are combined with other elements to make compounds such as calcium carbonate and magnesium sulfate?
Explanation:
Silver and Gold belong to a special group of metals known as the native metals. They are found naturally on their own and not in combined form in rocks.
These metals are found uncombined because they are unreactive. They prefer to alloy with themselves. Calcium and magnesium on the other hand are reactive metals. The unreactivity of these metals makes them uncombined in nature.ihsusbydnuhzkuhd nuziw
A wave that travels at the speed of light and consists of a combined electric and magnetic effect
Answer:
Electromagnetic waves
Explanation:
The description given is that of an electromagnetic wave.
Electromagnetic waves are propagated by the vibration of electrical and magnetic fields in a perpendicular direction to one another.
These waves generally travel at the speed of light. They are made up of magnetic and electric fields. They do no require a material medium for their propagationThey can pass through a vacuum.which statement is a scientific law
Answer:
It is b
Explanation:
Which temperature is the warmest?
290K
75 F
30 C
Answer:
What the heck is "K" but I beleive 75 is the answer, but maybe wait for sumone else to answer.
Explanation:
Answer:
30 C
Explanation:
I WILL MARK BRAINLIEST!!!!! !!
(picture included with one question ^^^^^^^)
Answer:
type D
balance form .b
Explanation:
The sun causes water in the pond to evaporate
1.conduction
2.convection
3.radiation
Answer:
The answer is Radiation
Answer:
Convectional
Explanation:
It is the movement of heat through fluid
While radiation travels though a vacuum and conduction accrues between atoms / solids
give a brainliest if it desires it plzzzz
Select The on that most applys
Will mark brainliest
Answer:
A and b
Explanation:
Clinical thermomerter
Answer:
Here is the definition: A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature.
What are the two parts of an atom ?
Answer:
The nucleus and the outer region.
Explanation:
What is 210 kg - 38 kg rounded to the correct number of significant figures
Answer:
170kg
Explanation:
a snail slowly moves along at 3 ft/hr. what type motion velocity ,distance, speed acceleration displacement Please answer need it now!!!!!
Answer:
motion - forward
velocity - 3ft/hr
distance - 3 ft/hr
speed - 3 ft/hr
acceleration - none
displacement - ?????
Explanation:
confusin helppppppppp????
Answer:
d. an acid is the answer
Need anwser pls. Hurry!!!!! Please hurry up.
Hurry.
The rows in the periodic table are called periods.
What is true about elements in the same period?
A. They have the same atomic mass.
B. Their magnetism increases in strength from left to right.
C. Their atomic numbers increase by 1 from left to right.
D. They have similar chemical properties.
Answer: C
Explanation:
You're cooking, and you accidentally grab a metal spoon without a hot pad. What type of heat transfer is responsible for the burn on your hand
Answer:
Conduction
Explanation:
Si units are the modern form of _____
Answer:
Metric system !!hope this helpss
What element is steel mainly composed of?
A. Iron
B. Carbon
C. Manganese
D. Silver
How many protons does Royalty, R-13, have?
Royalty is element #6.
O 13
07
06
O 19