Avagadro's number was calculated by determining the number of atoms in

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

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.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false