dyhji
22.09.2020 •
Mathematics
I need help no one helps me never
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Ответ:
E
Step-by-step explanation:
they all equal the same thing
hope this helps :)
Ответ:
221.88 g/mol
General Formulas and Concepts:
Chemistry
Reading a Periodic TableExplanation:
Step 1: Define
Mn₂O₇
Step 2: Identify
Molar Mass of Mn - 54.94 g/mol
Molar Mass of O - 16.00 g/mol
Step 3: Find MM
Molar Mass of Mn₂O₇ - 2(54.94) + 7(16.00) = 221.88 g/mol