C. 2 ATP. At the cellular level, energy is used and stored as adenosine triphosphate (ATP). Adenine, ribose, and three serially bound phosphate groups make up.
the structure of ATP, which is a nucleoside triphosphate. An organic substance called adenosine triphosphate provides energy for a variety of biological functions in living cells, including muscular contraction, nerve impulse transmission, condensate dissolving, and chemical synthesis. The main molecule for storing and transmitting energy in cells is adenosine 5'-triphosphate (ATP). At the cellular level, energy is used and stored as adenosine triphosphate (ATP). Adenine, ribose, and three serially bound phosphate groups make up. It is frequently referred to as the cell's energy currency and is like the money that is kept in a bank.provides energy for a variety of biological functions in living cells, including muscular contraction, nerve impulse transmission,
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what is the standard temperature and pressure (stp) as defined by the international union of pure and applied chemistry (iupac)?
Answer:
Temperature: 0 degrees Celsius (273.15 degrees Kelvin or 32 degrees Fahrenheit) Pressure: 1 atm (101.325 kilopascal or 760 Torr).
Explanation:
Choose which of the four Spartan files is most likely to be the best approximation of the actual complex, SEFeox3LS, SEFeox3HS, B3LYPFeox3LS, or B3LYPFeox3HS. Open that file the one deemed to be the most stable spin case of Fe ( ox ) 3 − 3 in the previous question. Go to the Setup window and choose Calculations. Click the boxes next to Infrared Spectra and Vibrational Modes. Click Submit. The calculation time will depend on the processor in the computer, but may need to run overnight
More stability is demonstrated by [Fe(C). 2 \s \s O \s4 \s \s ] \s3− In comparison to non-chelates, metal chelates are more stable. Oxalate produces metal chelates.
stability and is a bidentate ligand. Because of this, [Fe(C 2 O 4 ] 3 is more stable.the four Spartan files is most likely to be the best approximation of the actual complex, SEFeox3LS, SEFeox3HS, B3LYPFeox3LS, or B3LYPFeox3HS. Open that file the one deemed to be the most stable spin case of Fe ( ox ) 3 − 3 in the previous . Go to the Setup window and choose Calculations. Click the boxes next to Infrared Spectra and Vibrational Modes. The calculation time will depend on the processor in the computer, but may need to run overnight [Co(en)3] [Co(NH3)6] is less stable than 3+. As [Co(en)3], 3+ Due to the presence of the bidentate ligand, ethylene diamine, 3+ is a metal chelate. Comparatively speaking, monodentate lignad-only complexes are less stable than metal chelates.
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If purple flowers are dominant in a plant and white flowers are recessive in that plant, then when purple-flowered plants with two dominant genes are mated with white-flowered plants with two recessive genes, the first generation of offspring should have
A
100% white flowers
B
75% purple flowers and 25% white flowers
C
50% purple flowers and 50% white flowers
D
100% purple flowers
If purple flowers are dominant in a plant and white flowers are recessive in that plant, then when purple-flowered plants with two dominant genes are mated with white-flowered plants with two recessive genes, the first generation of offspring should have 100% purple flowers. Therefore, option D is correct.
What is dominant gene?In genetics, dominance occurs when one variant of a gene on a chromosome masks or overrides the effect of another variant of the same gene on the opposite copy of the chromosome.
The first variant is called dominant, while the second is called recessive. When there is dominance, it is always expressed. When no dominant genes are present, recessive genes are expressed.
Purple-flowered plants with two dominant genes should produce 100% purple flowers in the first generation when mated with white-flowered plants with two recessive genes.
The attached Punnett square shows the above combination.
Thus, option D is correct.
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A compound called calcium nitrate tetrahydrate is analyzed and determined to contain 0.44 moles of calcium nitrate. How many moles of water does this compound contain?
Calcium nitrate tetrahydrate is written as Ca(NO3)2.4H2O, which means that it contains one mole of calcium nitrate (Ca(NO3)2) and four moles of water (4H2O).
Since we know that the compound contains 0.44 moles of calcium nitrate, we can use the coefficient of the water in the chemical formula to find out how many moles of water the compound contains. The coefficient of water in the chemical formula is 4, so we can use it to calculate the number of moles of water in the compound:
0.44 moles of calcium nitrate x 4 moles of water/1 mole of calcium nitrate = 1.76 moles of water.
So the compound contains 1.76 moles of water.
a compound has a pka of 7.4. what is the ph of the resulting solution after we add 30 ml of 1.0 m hydrochloric acid to 100 ml of a 1.0 m solution of this compound at ph 8.0
Resulting pH = 7.4
Using Henderson Hasselbalch equation,
Since pH = pKa + log([A]/[HA])
8 = 7.4 + log([A]/[HA]), hence [A]/[HA] = 4 .....(i)
0.1 L = 0.1 mole (moles/L), hence [A] +[HA] = 0.1 .......(ii)
using eqn (i) and (ii), [A] = 0.08 moles and [HA] = 0.02 moles
After adding 30 ml of HCL, 0.03 L = 0.03 moles (mole/L)
Since [A] reduces and [HA] increases,
[A] = 0.08 - 0.03 = 0.05 and [HA] = 0.02 + 0.03 = 0.05
So new pH of solution becomes,
pH = 7.4 + log(0.05/0.05) = 7.4
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compare the three states of matter in terms of their shape and volume. explain in your own words why a gas takes both the shape and volume of its container, compared to solids and liquids?
Solids have a fixed volume as well as a fixed shape. Liquids have a fixed volume but liquids do not have a fixed shape. Gases do not have a fixed volume or a fixed shape and take up the shape and volume of the container they are placed in due to the weak intermolecular forces of attraction.
Among the three states of matter, solids have the most rigid structure. This is because solids have the strongest intermolecular forces of attraction amongst them and have a fixed shape as well as volume.
Among solids, liquids and gases, liquids have intermediate forces of attraction and hence they have a fixed volume but not a fixed structure and hence they take the shape of the container in which they are kept.
Particles of gases have the weakest intermolecular forces of attraction and hence they have no fixed volume or fixed shape and hence gases take up both the shape as well as the volume of the container they are kept in.
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Aluminum + hydrochloride acid yield aluminum chloride + hydrogen gas
What’s the balanced equation?
Aluminum + hydrochloride acid yield aluminum chloride + hydrogen gas therefore the balanced equation is 2Al+6HCl→2AlCl₃+3H₂.
What is a Chemical reaction?This is referred to as the process in which one or more substances which are called the reactants, are converted to one or more different substances known as the products and it involves the exchange of electrons between elements.
In this scenario, when Aluminum and hydrochloride acid reacts they form aluminum chloride and hydrogen gas which is the product and the equation can be seen above.
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How many electrons are exchanged when this reaction is balanced? mn(s) + cr3 (aq) → mn2 (aq) + cr(s)
We must take into account the quantity of electrons exchanged in order to balance this redox reaction. Manganese (Mn) undergoes a shift in oxidation state from 0 (in the solid form) to +2.
(in the aqueous state). This indicates that during the process, Mn loses two electrons. Chromium (Cr) goes from +3 (in the aqueous state) to 0 in terms of oxidation state (in the solid state). This indicates that throughout the process, Cr gains 3 electrons. Equal to the amount of electrons that Cr obtains, Mn loses the same number of electrons. Consequently, the following is the balanced equation for this reaction: 2Mn2+(aq) + 3Cr = 2Mn(s) + 3Cr3+(aq) (s) In this balanced equation, this reaction involves the exchange of two electrons.We must take into account the quantity of electrons exchanged in order to balance this redox reaction. Manganese (Mn) undergoes a shift in oxidation state from 0 (in the solid form) to +2.
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Pls help ty:)! What are dipole-dipole interactions?
Answer:
Explanation:
Dipole-dipole forces or interactions exist between polar molecules. Some regions on a molecule have more electrons in a certain region, while others have fewer electrons in certain regions.
Atoms that are more electronegative than the rest of the molecule pull electrons closer. This creates a partial positive charge where electrons are not as close to one atom, and a partial negative charge where the electrons are closer to the other atom in the molecule. Water is a classic example of a polar molecule. Oxygen is quite electronegative so it pulls the shared electrons closer to itself--this creates a partial negative charge on oxygen. Hydrogen is not that electronegative so it does not pull the electrons close to itself--this creates a partial positive charge.
A dipole is created. The positive end of the dipole attracts the negative end of another molecule with a dipole.
at what point in the citric acid cycle do the methyl carbon from acetyl-coa and the carbonyl carbon from oxaloacetate become chemically equivalent?
The methyl carbon from acetyl-CoA and the carbonyl carbon from oxaloacetate become chemically equivalent at the point of the citric acid cycle where the enzyme citrate synthase catalyzes the condensation of acetyl-CoA and oxaloacetate to form citrate.
The citric acid cycle, also known as the Krebs cycle, is a series of chemical reactions that occurs in the mitochondria of cells. One of the key steps in this cycle is the condensation of acetyl-CoA and oxaloacetate to form citrate. This reaction is catalyzed by the enzyme citrate synthase. During this reaction, the carbonyl carbon of oxaloacetate and the methyl carbon of acetyl-CoA are chemically equivalent in the molecule of citrate. This reaction marks the starting point of citric acid cycle and forms the first intermediate of the citric acid cycle.
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the superalloys divide into three basic groups, according to the base metal used in the alloy. which one is not one of these three groups.
The superalloys divide into three basic groups, according to the base metal used in the alloy. Name the three groups: (1) iron-based alloys, (2) nickel-based alloys,and (3) cobalt-based alloys.
WHAT IS SUPERALLOYSuperalloy materials are materials that have been developed to have the ability to maintain their strength at high temperatures (> 650oC) for a long time. A good combination of high strength and good ductility at low temperatures as well as good surface stability, surface stability means corrosion resistance, the formation of Cr2O3 and Al2O3 will improve surface stability. Superalloys originate from group VIIIB elements and generally consist of various combinations of Fe, Ni, Co, and Cr.
There are also alloying elements in smaller amounts, including W, Mo, Ta, Nb, Ti, Al, and V. Alloys in small amounts play a role in increasing strength by:
1. Mechanism of solid solution strengthening (W, Mo, Ti),
2. Forming carbides (W, Mo, Nb, Ta, Ti, V),
3. Precipitation strengthening (Al and Ti).
The reinforcement mechanism in superalloys is also controlled by means of:
1. Minimizing the formation of brittle phases: sigma phases, chi phases,
2. Controlling the carbide that is formed (so that it is not too brittle),
3. Controlling the grain size (so that the strength does not decrease).
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two ways can scientists exhibit ethical behavior?
Answer:
1. Creating products that improve people's lives.
2. Remaining impartial about data while conducting experiments.
Strontium-90 has a half-life of 28.8 years. If you start with a 10-gram sample of strontium-90, how much will be left after 115.2 years? Justify your answer.
Discuss the basic oxygen method (BOD) for manufacture of steel. Compare the process with open hearth.
(Compare)
The BOF method can also get rid of other pollutants in addition to carbon.
What is basic open hearth process?The open-hearth furnace (OHF) transforms a charge of scrap and liquid blast-furnace iron into liquid steel using the heat produced by the combustion of gaseous or liquid fuels. By blowing pure oxygen into a bath of molten blast-furnace iron and scrap, the basic oxygen process (BOP) creates steel.
Oxygen and a metal react to generate metallic oxide. Oxygen and several metals interact to generate metal oxides. Sodium and potassium are soft metals that are simple to cut, exposing a surface that is initially shiny but quickly becomes dull.
In addition to carbon, additional contaminants can also be eliminated using the BOF technique. Sulfur (S) and phosphorus (P) are two components with significant roles in the production and refinement of steel (P).
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What's the structural formula of 4, 4 dimethyl pent-2-ene?
The structural formula of 4,4-dimethyl pent-2-ene is:
H3C-CH2-CH(CH3)-CH(CH3)-CH2-CH3.
This molecule contains a pent-2-ene chain which is composed of 5 carbon atoms and 2 double bonds with a methyl group (-CH3) attached to the 4th and 5th carbon atoms. The structural formula of 4,4-dimethylpent-2-ene represents the arrangement of atoms in the molecule using chemical symbols and bond lines.
The chemical symbol for carbon is "C" and for hydrogen is "H". In this structural formula, you can see that there are 5 carbon atoms (C) and 14 hydrogen atoms (H) in the molecule.
The line (-) represents a single bond, which is a covalent bond between two atoms. The double bond is represented by "=".
The molecule contains a pent-2-ene chain which is composed of 5 carbon atoms and 2 double bonds between the 2nd and 3rd and 4th and 5th carbon atoms. The molecule also contains two methyl groups (-CH3) attached to the 4th and 5th carbon atoms. A methyl group is a functional group that contains one carbon atom and three hydrogen atoms.
This structural formula is a way to represent the molecular structure of 4,4-dimethyl pent-2-ene in a simplified way.
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Is copper (II) chloride an element, a heterogeneous mixture, a compound, or a homogeneous mixture?
Select one:
a. Element.
b. Heterogeneous mixture.
c. Compound.
d. Homogeneous mixture.
Answer: B a heterogeneous mixture
Explanation:
What is required for a fossil to become petrified?
o decay
O ground water
bacteria
mold
Lice
O minerals
Minerals is required for a fossil to become petrified.The preserved remains, or signs of remains, of extinct animals are called fossils.
The remnants of the creature itself are not fossils! They're stones. An full organism or only a portion of one can be preserved as a fossil. Leaves, feathers, shells, bones, and shells may all turn into fossils. Fossils come in a wide range of sizes. Only a microscope can see microfossils. Microfossils include pollen and bacteria. Petrified trees or dinosaur bones are examples of macrofossils. Once preserved remains have aged 10,000 years or more, they are considered fossils. Deep underground rock formations are a common place to find fossils. Through replacing the original material and filling the original pore spaces with minerals, petrification is the process by which biological material turns into a fossil.
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will a bond form if an atom of this element moves towards an atom having seven valence electrons? why or why not?
No, it would not be very probable to happen because the first element, neon, is already stable due to the fact that the outermost shell of its atom is completely filled.
An electron that is linked with an atom and that can take part in the development of a chemical bond is referred to as a valence electron. In the formation of a single covalent bond, each of the atoms in the bond contributes one valence electron in order to form a shared pair.
It is possible for the existence of valence electrons to determine the chemical characteristics of an element as well as whether or not it can form bonds with other elements. A valence electron can only exist in the most outer electron shell of an element that is part of the main group.
An atom that has its valence shell completely filled with electrons has a high probability of being chemically inert. A highly reactive atom is one that has one or two valence electrons in excess of what is required for a closed shell. This is because the additional valence electrons can be quickly stripped away to produce a positive ion.
An atom that has one or two valence electrons less than a closed shell is also extremely reactive. This is due to the fact that such an atom has a greater propensity to either gain the missing valence electrons or share valence electrons with neighboring atoms.
The complete question is attached.
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What type of narrow, curved rock formation forms when a sea cave is continually eroded?
Sea Arches are formed when a cave continues to be eroded and expanded until it cuts through a headland.
What is produced when a sea cave is eroded continually?A sea cave forms when a sea arch pursues to be eroded and widened until the rock becomes too weak to carry the roof of the sea cave and collapses into the sea. Caves are devised by the dissolution of limestone. Rainwater collects carbon dioxide from the air and as it percolates through the soil, which rotates into a weak acid.
Sea caves occur on almost every precipice headland or coast where the waves break straight on a rock cliff and are formed Sea caves by mechanical erosion rather than the chemical solution procedure that is responsible for the majority of inland caves.
So we can conclude that Sea caves or littoral caves are formed fundamentally from erosion caused by waves
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How would you prepare 500cm³ solution of 0.25 mol/dm³ of Potassium hydrogen phthalate KHC8H4O4 (K=39, H=1 C=12 O=16)
We would need to measure 25.5 g of the potassium hydrogen phthalate an d make up to 500cm³ mark.
What is the preparation?We know that we can be able to prepare a chemical if we can be able to measure out a given mass of the chemical that is in question and then make up to the mass that we need.
In the case of the Potassium hydrogen phthalate that we have;
Number of moles to be prepared = concentration * volume
= 0.25 mol/dm³ * 500/1000 L
= 0.125 moles
Mass of the compound = Molar mass * Number of moles
= 0.125 moles * 204 g/mol
= 25.5 g
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examples of soluble and insoluble salts
Explanation:
This is answer is given the following
an acid that has a high percentage ionization in solution is called a acid, while an acid that has a low percentage ionization is called a acid. acid strength is a measure of how readily a compound donates a(n) .
Acid the tendency of an acid to donate a proton. Thus, the more readily a compound donates a proton, the stronger the acid.
Acids and bases are measured using the pH scale.The relative strength of an acidacidacid can be predicted based on its chemical structure. In general, an acid is stronger when the H–A bond is more polar. Acidity is also greater when the H–A bond is weaker and when the conjugate base, A⁻, is more stable.acids are defined as being able to donate protons in the form of hydrogen ions; whereas bases are defined as being able to accept protons.This took the Arrhenius definition one step further as water is no longer required to be present in the solution for acid and base reactions to occur.go through the given link below to know more about acid:-
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she decides to repeat the experiment using lower concentrations of lead than those she used initially. what conclusion can the scientist in this scenario make from her results?
If the scientist repeats the experiment using lower concentrations of lead than those she used initially, she can draw several conclusions based on the results of the experiment.
If she finds that the results are similar or the same as her initial experiment, she can conclude that the effect observed in her initial experiment is likely due to the lead and not a result of chance. This would provide support for her hypothesis that lead is responsible for the observed effect. Additionally, this could also indicate that the effect is likely to be present at a wide range of lead concentrations, and not just at the higher concentrations used in the initial experiment. If the results are different, however, she may conclude that the effect is dependent on the concentration of lead and that lower concentrations have a weaker effect. For example, she may have used different methods for preparing the lead solutions in the repeat experiment which could have led to variations in the final concentrations.
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Part B
Now observe the properties of the liquid in the container labeled unknown. Record the properties of the unknown
substance in the table.
Based on the observed properties of water and rubbing alcohol, the properties of the unknown substance are as follows;
It is colorless and dissolves readily in water but sparingly in rubbing alcohol.the substance is a polar substanceWhat are the properties of alcohol and water?The properties of water are as follows:
water is a colorless, odorless, and tasteless liquidWater can dissolve saltwater is a polar liquidThe properties of rubbing alcohol are as follows:
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Complete question:
Part A
Water and rubbing alcohol have distinct properties and will react differently with the same substance. Observe these properties of water and rubbing alcohol: color, smell, and ability to dissolve the salt. Record your observations in the table. To observe the solubility of salt in the liquid, put a one-quarter teaspoon of salt into each container and stir. You may weigh out 1.5 g of salt on the electronic balance if you don’t have a one-quarter teaspoon measure.
Part B
Now observe the properties of the liquid in the container labeled unknown. Record the properties of the unknown substance in the table.
Chelsea went camping for one week. Each night she saw the moon and noticed that the moon seemed to be getting larger. Which kind of moon was she
seeing?
O Full moon
O Waning Moon
O Waxing Moon
The type of moon that Chelsea was seeing is full moon (option A).
What is the moon?The moon is any natural satellite of a planet. It is defined to be a celestial body that makes an orbit around a planet, including the eight major planets, dwarf planets, and minor planets.
The eight phases of the moon are as follows;
new moonwaxing crescentfirst quarterwaxing gibbousfull moonwaning gibbousthird quarterwaning crescentAccording to this question, Chelsea went camping for one week. Each night she saw the moon and noticed that the moon seemed to be getting larger.
It can be said that Chelsea is seeing the full moon.
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I don’t understand how to do this it’s very confusing
Answer:
a Naturally occurring and stable =
b. naturally occurring and radioactive
I need help with these questions
A chemical compound is a substance formed by the union of two or more chemical elements in a fixed ratio, the union being a chemical bond.
A pure substance is a substance that are made up of only one kind of particle and have a fixed or constant structure. Pure substances are further classified as elements and compounds.
A molecule is the smallest particle of a specific element or compound that retains the chemical properties of that element or compound; two or more atoms held together by chemical bonds.
A mixture is a compound made up of two or more chemical components that are not chemically linked together. This means that a mixture can be made of elements, compounds etc. but not the other way round.
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Bella is writing a research paper on ocean currents. Which two sources should she consult?
Articles published by universities or government agencies. 3. Article published in 2015 and updated a research week ago.
Which two sources should she consult?When it comes to digging deeper into scientific research, books and scientific journals are usually your best bet. Academic journals are often the best place to find reliable and authoritative content and are considered one of the most authoritative sources to use when writing academic papers.Most studies use both primary and secondary sources. They complement each other and help build a compelling argument. Primary sources are more reliable as evidence, while secondary sources show how your research relates to existing research. Books provide more detailed information than encyclopedias or websites. It is written by authors selected by publishers for their expertise and is therefore a reliable source of information. Information is also checked by other experts and editors before publication.To learn more about research from the given link:
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Given The Following Data, Calculate ΔrH∘ΔrH∘ For The Reaction: N2O(G)NO2(G)⟶3NO(G)N2O(G)NO2(G)⟶3NO(G)
Give names to equations 1, 2, and 3.Equation 3.2 N2O (g) N2 (g) + 0.5 O2 (g) H = -81.6 kJEquation 2: NO (g) + 1/2 O2 (g) + (1/2) NO2 (g) = +56.55 kJ
Equation 1 states that N2 (g), O2 (g), 2NO (g), and H = +180.7 kJ.
See Equation of state for cosmological applications of this (cosmology). See Optimum control General technique for further information on how this idea is used in optimal control theory.An equation of state is a thermodynamic formula used in physics, chemistry, andthermodynamics to describe the state of matter under a particular set of physical parameters, such as pressure, volume, temperature, or internal energy.[1] The Helmholtz free energy is used to formulate the majority of current equations of state. The characteristics of pure substances and mixtures in their liquid, gaseous, and solid forms as well as the state of matter
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Which method would provide evidence to support the inference that this is a exothermic reaction
The chemical change that would provide evidence of exothermic reaction is evolution of heat.
What is a chemical change?Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
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