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3 years ago

At which temperature would the molecules in a one

Chemistry

1 answer:

Nastasia [14]3 years ago

7 0

Answer:

-100 K

Explanation:

<em>Kinetic energy is related to temperature.</em> The molecules in water will move faster in warmer temperatures than in colder ones.

100 K is equal to -279.67°F (-173.15°C). So 100 K would have the lowest average kinetic energy.

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If 225 grams of propane are burned in the presence of 125 grams of oxygen, how many grams of water should be expected?

Travka [436]

150 grams of water because if 225 grams of propane are burned with 125 grams of oxyegen then there will be 150 grams of water

5 0

3 years ago

Amino acids can be synthesized by reductive amination. Draw the structure of the organic compound that you would use to synthesi

UkoKoshka [18]

Answer:

Following are the answer to this question:

Explanation:

For the reductive amination of its carbonyl group, amino acids could be synthesized by reducing ammunition, which can be synthesized in the given attachment file:

please find the attachment:

4 0

3 years ago

Write a method that could be used to produce pure crystals of copper chloride from copper oxide and hydrochloric acid.

joja [24]

- Describe how you would make the salt from the reactants.

CuO + 2 HCl → CuCl₂ + H₂O

- Describe how you would purify the salt from the reaction mixture.

Filter the solution and let the product crystallize.

Explanation:

The reaction between copper oxide (CuO) and hydrochloric acid (HCl) will produce copper chloride (CuCl₂) and water:

CuO + 2 HCl → CuCl₂ + H₂O

-Describe how you would make the salt from the reactants

In a beaker which contain cooper oxide add the hydrochloric acid. To avoid working with concentrated hydrochloric acid, the acid may be diluted with water but make sure the add the stoechiometric amount (and a little bit of excess) in respect with the copper oxide.

-Describe how you would purify the salt from the reaction mixture.

Let the reaction proceed and then filter the solution to remove the unreacted cooper oxide.

Let the filtered solution, which contain copper chloride, water and unreacted hydrochloric acid, to stand undisturbed for several days. You may see the crystals growing from the solution. To speed up the process you may reduce the temperature.

Learn more about:

purifying compounds

brainly.com/question/5586971

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3 0

3 years ago

Ethanoic acid, CH3COOH, ionizes to form an ethanoate ion (CH3COO-) in aqueous solution. what else does it form? is it a monoprot

barxatty [35]

Ethanoic acid ionizes in aqueous solutions to form two ions which are $CH_3COO^-$ and $H^+$

<h3>Ionization of ethanoic acid</h3>

Ethanoic acid goes by the chemical formula $CH_3COOH$ .

In aqueous solutions, it ionizes as a monoprotic acid according to the following equation:

$CH_3COOH ---- > CH_3COO^- + H^+$

A monoprotic acid is an acid that is able to donate only a proton. Hence, ethanoic acid is said to be monoprotic because it ionizes in aqueous solutions to produce a single $H^+$

More on ethanoic acid can be found here: brainly.com/question/9991017

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8 0

2 years ago

As a gas changes to a solid, energy<br> A. is not used.<br> B. is released.<br> C. is absorbed.

pogonyaev

Answer:

Explanation:

Energy is released, when a gas changes to solid

7 0

3 years ago