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mote1985 [20]
3 years ago
12

25 POINTS!

Chemistry
1 answer:
ryzh [129]3 years ago
4 0

Answer: The Answer is B. Energy can not be created nor destroyed.

Explanation:

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Why can't the reaction, ZnCl2 + H2 → Zn + 2HCI, occur naturally?
Llana [10]

Answer:

It is fairly obvious that zinc metal reacts with aqueous hydrochloric acid! The bubbles are hydrogen gas. ... In fact, electrons are being transferred from the zinc atoms to the hydrogen atoms (which ultimately make a molecule of diatomic hydrogen), changing the charges on both elements.

Explanation:

7 0
3 years ago
The volume of a fixed amount of gas is doubled, and the absolute temperature is doubled. According to the ideal gas law, how has
neonofarm [45]

Answer:

Option A. It has stayed the same.

Explanation:

To answer the question given above, we assumed:

Initial volume (V₁) = V

Initial temperature (T₁) = T

Initial pressure (P₁) = P

From the question given above, the following data were:

Final volume (V₂) = 2V

Final temperature (T₂) = 2T

Final pressure (P₂) =?

The final pressure of the gas can be obtained as follow:

P₁V₁/T₁ = P₂V₂/T₂

PV/T = P₂ × 2V / 2T

Cross multiply

P₂ × 2V × T = PV × 2T

Divide both side by 2V × T

P₂ = PV × 2T / 2V × T

P₂ = P

Thus, the final pressure is the same as the initial pressure.

Option A gives the correct answer to the question.

3 0
2 years ago
When objects of two different temperature are in contact, what happens?
Sonja [21]
Answer: C. the warmer object transfers heat energy to the cooler side
5 0
1 year ago
Read 2 more answers
a. How can one tell if a chemical reaction is balanced? (.5 point) b. What information does a complete ionic equation give that
evablogger [386]

Answer:

I think it's C

Explanation:

i think its c b3cause when you guess c always feels right

8 0
1 year ago
Assume that the heat lost by the surface is gained by ethyl chloride. What enthalpies must you consider if you were to calculate
Ann [662]

Answer:

Specific heat of ethyl chloride in gas and liquid phases, enthalpy of vaporization and specific heat of solid surface.

Explanation:

In order to determine the final temperature, the heat lost by the chloride needs to be found. This would require the specific heat in both phases and the enthalpy of vaporization. (you will use q=mc(delta)T and q=m(delta)H)

Then the energy gained by the surface needs to be found. This will require the specific heat in order to use the q=mc(delta)T equation.

3 0
3 years ago
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