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posledela
3 years ago
11

What is the percent composition of Oxygen found in H2O?

Chemistry
1 answer:
love history [14]3 years ago
4 0
2 Part of H
1 Part of O

100% : 3 = 
33.33333... %


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nydimaria [60]

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3 years ago
2KCIO3 ----------&gt; 2KCI + 302<br> How many moles of KCIO3 are needed to make 3.5 moles of KCL?
lyudmila [28]

Answer:

3.5 mol KClO3

Explanation:

Given 3.50 moles of KCl as the target amount in the problem, used the coefficient of the balanced chemical reaction involved to determine the number of moles of potassium perchlorate needed.

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x mole of  KClO3 = 3.5 mol KClO3

3 0
3 years ago
(07.06 mc)
Slav-nsk [51]

Distilled water and sealed container are in equilibrium when these objects do not exchange more heat.

<h3>What is thermal equilibrium?</h3>

The expression 'thermal equilibrium' makes references to the phenomenon by which two objects interact with each other to exchange heat energy.

Objects in contact can transfer heat to reach a thermal equilibrium state where the temperature is the same for both objects.

In conclusion, distilled water and sealed container are in equilibrium when these objects do not exchange more heat.

Learn more on thermal equilibrium here:

brainly.com/question/9459470

#SPJ1

5 0
2 years ago
What is a more modern device that measures mass?
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Alborosie

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d cell membrane:)

Explanation:

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