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)

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

може ли да зареждате повече информация, моля