(ii) I cannot make the payment today.
(Use 'made' without changing the tense)

If a || b and e || f, what is the value of y ?

What does the process of natural selection involve

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g