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C1: Quiz 4
C1: Quiz 4
1) What is a compound?
2) We have the three substances below.
C , H2O , O2
Which of the three substances above is a compound and why?
3) Iron oxide is Fe2O3.
a) How many iron atoms are there in a single molecule of iron oxide?
b) How many oxygen atoms are there in a single molecule of iron oxide?
c) How many atoms are there in total in a single molecule of iron oxide?
4) Glucose is C6H12O6.
a) How many hydrogen atoms are there in a single molecule of glucose?
b) How many carbon atoms are there in a single molecule of glucose?
c) How many atoms are there in total in a single molecule of glucose?