They are arranged by their atomic mass.
Answer:
D
Explanation:
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Answer:
0.131 mol
Explanation:
To convert grams to moles, you need to use the molar mass. The molar mass is the mass number. You can find this on the periodic table. The molar mass of sodium is 22.990 g/mol.
(3.02 g)/(22.990 g/mol) = 0.131 mol
I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.