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may i get 7-9 answered please. 7. How many H atoms are present in 5.00 moles of H atoms? 8. How many moles of C

may i get 7-9 answered please. image text in transcribed

7. How many H atoms are present in 5.00 moles of H atoms? 8. How many moles of C atoms are there in 7.521024C atoms? 9. What is the mass of 1.00 mole of He? 10. How many moles of He are present in 10.0g of He

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