P(g) + Q(g) ↔ 3R(s) + S(g) ΔH is negative
Which of the following will increase the yield of R?

A metal M displaces zinc from zinc chloride solution. This shows that

Which of the following best explains the increase in the rate of a chemical reaction as the temperature rises?

What current in amperes will deposit 2.7g of aluminium in 2 hours?
[Al = 27, F = 96 500 C mol-1]

Ethanoic acid is