What will be the new volume if 125 mL of He gas at 100 C and 0.981 atm is cooled to 25 C and the pressure is increased to 1.15 atm?​

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.