Explain why the frequency of the O-H stretch of ethanol in chloroform solution changes as the solution is diluted by adding more chloroform. Does the O-H stretching frequency increase or decrease as the solution is diluted?

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

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.

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?