10 g of sodium hydrogen carbonate dissolved in 20 cm cubic of water in boiling tube lemon juice was then added dropwise qith shaking untillthere waz no further obserble change explain the observation which was made in the boiling tube when the reaction was in progress​

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.