Chemical Formulas And Counting Atoms: Question Preview (ID: 30969)

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How many oxygen atoms in CO2 ?
a) 1 b) 2 c) 3 d) 4
How many oxygen atoms in 3CO2 ?
a) 4 b) 5 c) 6 d) 7
How many atoms in 4NaCl ?
a) 2 b) 4 c) 8 d) 12
How many molecules in 12 HOH ?
a) 2 b) 3 c) 6 d) 12
How many hydrogen atoms in 12 HOH ?
a) 12 b) 2 c) 24 d) 3
How many elements in NaClHNOPS ?
a) 1 b) 7 c) 9 d) 14
How many sodium atoms in 5NaClS ?
a) 1 b) 3 c) 5 d) 15
How many atoms in 14NaCl ?
a) 2 b) 14 c) 28 d) 15
Which is NOT a compound?
a) NaCl b) H2O c) O2 d) CO2
How many total atoms are in 4 H2SO4 ?
a) 4 b) 5 c) 20 d) 28
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