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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