1 electron. Look at the periodic table, fluorine (F) is on the right, atomic number 9. It wants to get all the way over to the right to become more stable, which means it only needs 1 more electron (has 7 in its current state, wants 8)
The mass in a chemical reaction remains (mostly) the same.
(except for radiation/nuclear fission, in which mass gets converted into energy)
Answer:
Hydrogen carbonate is an acid, sodium Sulfate is a salt.
Explanation:
Hydrogen carbonate is a weak acid because it will partially ionize in water while sodium sulfate is a neutral salt which is formed when neutralization of acid and base takes place
Answer:

Explanation:
Data:
p₁ = 1.00 atm; V₁ = 350. L
p₂ = ?; V₂ = 2.00 L
Calculation:

1. opinion
2. fact
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im not sure if this is what you were asking but yeah