Which of the following equations represent
redox reactions? For each redox reaction,
determine which atom is oxidized and which
is reduced, and identify the oxidizing agent
and the reducing agent.
a. MgO(s) + H2CO3(aq) →
MgCO3(s) + H2O(l)
b.2KNO3(s)→2KNO2 (s) + O2(8)
c. H2(g) + CuO(s) → Cu(s) + H2O(1)
d. NaOH(aq) + HCl(aq) →
NaCl(aq) + H2O(1)
e. H2(8) + Cl2(g) → 2HCl(8)
f. SO3(g) + H2O(1)→ H2SO4(aq)

a. MgO(s) + H2CO3(aq) →  MgCO3(s) + H2O(l) DOUBLE DISPLACEMENT REACTION.

b. 2KNO3(s)→2KNO2 (s) + O2(8) DESCOMPOSITION REACTION.

c. H2(g) + CuO(s) → Cu(s) + H2O(1) SINGLE DISPLACEMENT REACTION.

d. NaOH(aq) + HCl(aq) →  NaCl(aq) + H2O(1) COMBUSTION  REACTION.

e. H2(8) + Cl2(g) → 2HCl(8) SYNTHESIS REACTION.

f. SO3(g) + H2O(1)→ H2SO4(aq) SYNTHESIS REACTION.

its first and third is your answer i did the qustion the fourth isnt right

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101