Which of the following is an oxidation-reduction reaction? Group of answer choices

NaI(aq) + AgNO3(aq) → AgI(s) + NaNO3(aq)

All of the above are oxidation-reduction reactions.

Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g)

HCl(aq) + LiOH(aq) → LiCl(aq) + H2O(l)

Pb(C2H3O2)2(aq) + 2 NaCl(aq) → PbCl2(s) + 2 NaC2H3O2(aq)

idk

explanation:

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current