Why does the temperature of different layers of the atmosphere vary

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

Tell me the iupac names of the following alcohols:

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.