7 The diagram shows three appropriate meters, P, Q and R, connected in the conventional way in a circuit. The switch is initially open. The switch is now closed. What…

The following reaction is at equilibrium: 2R(g) + 3S(g)  2T(g)      llH is negative which conditions (A-E) would produce most of the product T? Answer: 6) B In order to produce…

The action of which enzyme(s) could decrease the pH of a mixture of carbohydrate, protein and lipid? Answer: 5) F A logical way of solving this question is to identify…

Answer: 4) A Substitute the values given in the problem 4.6 x 10⁷ + 7 (2 x 10⁶)4.6 x 10⁷ – 2 (2 x 10⁶) (4.6 x 10⁷) + (14…

Microwave, X-ray and infra-red radiation can all damage living tissues. Which of the following statements correctly explain why this damage occurs? Microwaves cause damage because they are absorbed by water…

The following chemicals are mixed together. In which of the mixtures will a displacement reaction occur? Pb(N03)(aq) + Al(s) 2KCl(aq) + 2F-(aq) Al2(S04)3(aq) + 3Fe(s) CuS04(aq) + Zn(s) Answer: 2)…