what is the relationship between the thickness of the book and the ability of the magnet to hold on to and attract the paper clips?

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

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.

Answer explain why it is not possible to deduce a complete order of reactivity.