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777dan777 [17]
2 years ago
14

Please help me! Please explain!

Chemistry
1 answer:
Ksju [112]2 years ago
8 0

Answer: Total number of Protons PLUS Neutrons

Explanation:

Hopes that helps

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Solids, liquids, gases, and plasma are all matter. When all atoms that make up a substance are the same, then that substance is an element. Elements made of only one kind of atom. Because of this, elements are called "pure" substances.

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The decomposition reaction for hydrogen peroxide is given below:

                                     2H_{2} O_{2} → 2H_{2} O + O_{2}

This is a decomposition reaction.

Reactions in which a reactant breaks into two or more products are known as Decomposition reactions.

                                          AB → A + B

here, AB represents the reactant that begins the reaction, and A and B represent the products of the reaction

The decomposition reaction of decomposing hydrogen peroxide is exothermic. When the hydrogen peroxide undergoes a decomposition reaction, heat is also released along with water and oxygen.

Hence the  reaction for decomposing hydrogen peroxide is :

         2H_{2} O_{2} → 2H_{2} O + O_{2}

If you need to learn more about Decomposition reaction, click here

brainly.com/question/16987748?

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16. Two identical beakers containing water, which have not yet been placed in the sun, are shown below. х Y If both beakers are
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Which is the empirical formula for a compound that contains 64.75g nitrogen and 185.25 oxygen
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Answer:

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