During the reaction: Mg(s) + CuSO4(aq) es)
MgSO4(aq) + Cu(s), what changes occur to magnesium?

A)Its oxidation number changes from +2 to 0 and it is reduced.
B)Its oxidation number changes from 0 to +4 and it is reduced.
C)Its oxidation number changes from 0 to +2 and it is oxidized.
D)Its oxidation number changes from +2 to +4 and it is oxidized.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Can someone me with 6 to 10 plz this is for masteries test.

Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.