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Tatiana [17]
3 years ago
5

1.

Chemistry
1 answer:
Licemer1 [7]3 years ago
3 0

Answer:

B. Yes, because the mass of all the products of burning is equal to the mass

of the reactants (wood and oxygen gas).

Explanation:

good luck

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What is difference between a pH of 8 and a pH of 12 in terms of H+ concentration?
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Answer:

At a greater value of pH, [H⁺] is really low.

Solution with pH = 8 has more [H⁺] than solution at pH =12.

Explanation:

pH = - log [H⁺]

10^-pH = [H⁺]

At pH = 8, [H⁺] = 10⁻⁸  → 1×10⁻⁸ M

At pH = 12, [H⁺] = 10⁻¹²  → 1×10⁻¹² M

In conclussion, at a greater value of pH, [H⁺] will be really low.

Solution with pH = 8 has more [H⁺] than solution at pH =12.

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When the number of electrons does not equal the number of protons, the atom is ionized and then they are no longer atoms, they are known as ion(s).

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