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liraira [26]
3 years ago
11

1 What is the sum of all the protons and neutrons in an atom?

Chemistry
1 answer:
MaRussiya [10]3 years ago
6 0

Answer:

<em>Mass number.</em>

Explanation:

The sum of the number of protons and neutrons in an atom is called the mass number.

For example: Carbon-12 has 12 protons and 12 neutrons.

- Sophia

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What is an octet of electrons? Which elements contain an octet of electrons?
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Answer:

Explanation:

Octet, in chemistry, the eight-electron arrangement in the outer electron shell of the noble-gas atoms. This structure is held responsible for the relative inertness of the noble gases and the chemical behaviour of certain other elements.

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The ccl4 formed in the first step is used as a reactant in the second step. if 2.00 mol of ch4 reacts, what is the total amount
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When uranium decays inside Earth, what does it produce?
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New rocks

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What is a major difference between a chemical reaction and a nuclear reaction? A) Only chemical reactions release light. B) Only
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Write a net ionic equation to show that benzoic acid, C6H5COOH, behaves as a Brønsted-Lowry acid in water.
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Answer:

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

Explanation:

According to Brönsted-Lowry acid-base theory, an acid is a substance that donates H⁺. Let's consider the molecular equation showing that benzoic acid is a Brönsted-Lowry acid.

C₆H₅COOH(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The complete ionic equation includes all the ions and molecular species.

C₆H₅COO⁻(aq) + H⁺(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

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