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yuradex [85]
2 years ago
5

Complete the following statements to describe solids, liquids, and gases. Select the correct answer from each drop-down menu.

Chemistry
1 answer:
masya89 [10]2 years ago
3 0

Answer:

Explanation:

Complete the following statements to describe solids, liquids, and gases. Select the correct answer from each drop-down menu.

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Sleet and hail, sleet are tiny drops of water that freeze when it rains. Hail forms when a thunderstorm lifts a water droplet above the freezing level.

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The chemical equation for a reaction between K2Cr2O7 and HCl is shown. K2Cr2O7 + 14HCl → 2CrCl3 + 2KCl + 3Cl2 + 7H2O
guapka [62]

<u>Answer: </u>The correct answer is Option b.

<u>Explanation:</u>

Oxidizing agent is defined as the chemical reagent which helps the other chemical compound to get oxidized and itself gets reduced. The oxidation state for these species gets reduced because they are undergoing reduction reaction.

For the given chemical equation:

K_2Cr_2O_7+14HCl\rightarrow 2CrCl_3+2KCl+3Cl_2+7H_2O

Oxidation state of Chromium is getting reduced from +6 to +3 and oxidation state of chlorine getting increased from -1 to 0.

Hence, K_2Cr_2O_7 acts like and oxidizing agent because it is itself getting reduced to CrCl_3

Therefore, the correct answer is Option b.

4 0
3 years ago
The accepted value for R is 0.08206 L·atm/K·mol or 8.314 L·kPa/K·mol, depending on the unit of pressure used. (Your answer may d
Alecsey [184]

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How do particles in a solid move?
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The particles in a solid vibrate in place.

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Hope this helps!

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