Please help:/ I can’t figure out the answer Why are digital signals an accurate and reliable way to record and send information?

Can someone me with questions 12 and 13 plz.

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.

How can a mixture of salt water be separated into salt and water