1) How many atoms of Oxygen are found in water? a) 2 b) 1 c) 3 2) What is the total amount of atoms found in this molecule? a) 4 b) 3 c) 6 d) 2 3) How many different atoms are in this formula? a) 3 b) 2 c) 1 4) How many hydrogen atoms are in this molecule? a) 4 b) 3 c) 1 5) How many atoms are in the molecule ethanol? a) 9 b) 7 c) 6 d) 3 6) Which two formulas have the same number of carbon (C) atoms? a) 1 and 2 b) 2 and 4 c) 1 and 3 d) all have the same number of C atoms

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