The law of conservation of mass states that during a chemical reaction, total mass is

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Explain what happens at the saturation point when adding salt to water at room temperature.

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.