PLEASE HELP AND ANSWER THESE TWO QUESTIONSHow many moles are in 24 L of O,? 3. How many particles are in 12,5 moles of
Caz(PO4)2? I Hope you can see! Pleaseee show your work. thank you!

What provides structure to the human body?

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.