adonailis1343 adonailis1343

16-11-2017
Biology

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How many Oxygen (O) atoms are in the following? H2O + CO2

4

2

3

Three?

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Mikes12 Mikes12

16-11-2017

3 is the answer. the number to the right means the number of one elemet, for example O2 which means there are 2 oxygen atoms. Hope i have helped.

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