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serious [3.7K]
3 years ago
14

What distinguishes a chemical property from a physical property?

Chemistry
2 answers:
Dvinal [7]3 years ago
6 0
C. Chemical properties always change depending on temperature or pressure
scZoUnD [109]3 years ago
3 0
I think the answer is C.
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4. Which two compounds contain the same total number of atoms?
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Answer:

b

Explanation:

Atom is the smallest particle of an element

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Three light sticks are activated at the same time. One stick is placed in a beaker of hot water, one in a beaker of ice water, a
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The [OH-] of a solution is 7.89 10^-12 M. What is the pH of the solution? it acidic or basic? *
kompoz [17]

Answer: pH = 2,897 , basic[H+][OH-] = 10^{-14} ==> [H+] = \frac{10^{-14}}{7,89*10^{-12} } =\frac{1}{789} \\pH= -lg([H+]) = 2,897 \\pH basic

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3 years ago
What is another name for the sugars organisms use for energy?1. Proteins2. Nucleic acids3. Carbohydrates4. Lipids
victus00 [196]

Answer:

Carbohydrates or Carbs have sugar molecules! :3 hope this helped you

Explanation:

4 0
3 years ago
For which δg°rxn = –30.5 kj/mol at 37.0 °c and ph 7.0. calculate the value of δgrxn in a biological cell in which [atp] = 5.0 mm
mario62 [17]
We are given ΔG°rxn = -30.5 kJ/mol for the following reaction:

ATP + H₂O → ADP + HPO₄²⁻

We are given a series of concentrations for each of the species and are asked to find the value of ΔG for the reaction. We can use the following formula:

ΔGrxn = ΔG°rxn + RTlnQ

We can use R = 0.008314 kJ/molK; T = 335.15 K and Q is the reaction quotient which can be found as follows, and be sure to first convert each concentration of mM to M:

Q = [ADP][HPO₄²⁻]/[ATP]
Q= [0.00010][0.005]/[0.005]
Q = 0.0001

Now we can use the above formula to solve for ΔGrxn.

ΔGrxn = -30.5 kJ/mol + (0.008314)(310.15)ln(0.00010)
ΔGrxn = -54.3 kJ/mol

The value of ΔGrxn = -54.3 kJ/mol.
6 0
3 years ago
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