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mihalych1998 [28]
3 years ago
15

Is copper metal mixed with water an:

Chemistry
2 answers:
Alex17521 [72]3 years ago
8 0

Answer:

I believe it is c or d I'm sorry I didn't give you one but I know it is not a or b

vlada-n [284]3 years ago
4 0
The answer is C

Hope this help
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What is one benefit and one negative of the Gulf Stream
luda_lava [24]

This is a benefit I’m not sure if a negative

This strong current of warm water influences the climate of the east coast of Florida, keeping temperatures there warmer in the winter and cooler in the summer than the other southeastern states. Since the Gulf Stream also extends toward Europe, it warms western European countries as well.

6 0
3 years ago
Which increases the rate of a chemical reaction?
oee [108]
I believe the correct answer from the choices listed above is option A. It is a catalyst that <span> increases the rate of a chemical reaction. It provides another pathway for the reaction in order for it to hasten the speed of the reaction. Hope this answers the question. </span>
3 0
4 years ago
"A certain group one metal combines with Hydrogen, to form a molecule with the formula XH. The equilibrium bond length of this c
Tasya [4]

Based on the bond length, the molecular weight of the unknown metal X is 23.

<h3>What are ionic compounds?</h3>

Ionic compounds are compounds which are formed between oppositely charged ions.

When hydrogen combines with the group 1 metals, they form ionic compounds.

The group one metals that combine with hydrogen to firm ionic bonds include:

  • Lithium to give Lithium hydride with equilibrium bond length of 0.239Å.
  • Sodium to give sodium hydride with equilibrium bond length of 1.896Å.
  • Potassium to give potassium hydride with equilibrium bond length of 2.321Å

The molecular weight of lithium is 7 g

The molecularweight of sodium is 23

The molecular weight of Potassium is 39.

Therefore, based on the equilibrium bond length, the molecular weight of the unknown metal X is 23.

Learn more about bond length at: brainly.com/question/3405662

5 0
3 years ago
What is the relationship between temperature and reaction rate?​
Alecsey [184]

Explanation:

Temperature has a direct relationship with reaction rate. The higher the temperature the faster the rate of reaction of a system.

  • For every 10°C rise in temperature above the room temperature, it has been found that reaction rates becomes double or triple.
  • When the temperature of a reacting system increases, the kinetic energy of each of the reacting particles increases.
  • The frequency of collision and effective collision also increases per unit of time.
  • Many of the reacting particles will acquire an energy greater than or equal to the activation energy of the reaction.
6 0
3 years ago
Given that the free energy of the twist-boat conformer of cyclohexane is 5.3 kcal/mol greater than that of the chair conformer,
marishachu [46]

Answer:

0.013%

Yes, it does. The answer agrees with the statement.

Explanation:

Both conformers are in equilibrium, and it can be represented by the equilibrium equation K:

K = [twist-boat]/[chair]

The free energy between them can be calculated by:

ΔG° = -RTlnK

Where R is the gas constant (8.314 J/mol.K), and T is the temperature (25°C + 273 = 298 K).

ΔG° = 5.3 kcal/mol * 4.182 kJ/kcal = 22.165 kJ/mol = 22165 J/mol

22165 = -8.314*298*lnK

-2477.572lnK = 22165

lnK = -8.946

K = e^{-8.946}

K = 1.30x10⁻⁴

[twist-boat]/[chair] = 1.30x10⁻⁴

[twist-boat] = 1.30x10⁻⁴[chair]

The percentage of the twist-boat conformer is:

[twist-boat]/([twist-boat] + [chair]) * 100%

1.30x10⁻⁴[chair]/(1.30x10⁻⁴[chair] + [chair]) *100%

0.013%

The statement about the conformers is that the chair conformer is more stable, and because of that is more present. So, the answer agrees with it.

3 0
3 years ago
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