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1. How many CO2 molecules are needed to produce 1 glucose molecule (in photosynthesis)?

2. How many moles of oxygen atoms are in 1 mole of calcium phosphate?

3. How many H2O molecules are in 1 L of water?

4. What is the totalmass (in grams) of silicon atomsin 1.00 kg of SiO2?

5. What is the total mass of oxygen atoms (in grams) in 1.00 kg of nitric acid?

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