Unit 6 Lesson 3 Practice

1) How many water molecules are shown?

2) How many total oxygen atoms are shown?

3) How many total hydrogen atoms are shown?

4) How many hydrogen atoms are in each water molecule?

5) How many oxygen atoms are in each water molecule?

6) How many carbon atoms are in each ethylene molecule?

7) How many total carbon atoms are there?

8) How many total hydrogen atoms are there?

9) which picture matches the amount of ethylene shown?

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10) Which number is a subscript?

• 4
• 2