angelica7773
15.08.2021 •
Chemistry
a hydrogen atom usually consists of 1 proton and 1 electron. a helium atom usually contains 2 protons, 2 neutrons, and 2 electrons. compare the mass of 2 hydrogen atoms to the mass of 1 helium atom.
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Ответ:
*answer*
your answer will be 4.5 g
Explanation:
Vinegar is a solution with a 3% mass of acetic acid. How much acid is in 150 g of vinegar? (result: 4,5 g of acetic acid) solute acetic acid solvent water solution.