Question

6. Identify from the following reactions the reactants that undergo oxider
reduction.
Fes
a. Fe +S
b. 2A9,0 - → 4 Ag +0,1
c. 2Mg +0,-
2Mgo
d. NiO+H,
-Ni+H2O
7. Balance the following equation stepwise.
a. H,8,0,(1) + H2O(l) —— HSO (1)
b. SO2(g) + H S(aq) –
→ S(s) + H2O (1)
c. Ag(s) + HCl(aq)-
AgCl + H24
d. NaOH (aq) + H,SO (aq) —
Na, So,(aq) + H2O(1)
8. Identify the endothermic and exothermic reaction.
a. HCl + NaOH - NaCl + H2O + heat
b. 2KCIO,($) 4 > 2KCI(s) + 30, 1
c. CaO+H2O + Ca(OH)2+heat
CaO(s) + CO.1
d. CaCO3(s) _4,​

Answer 1

Answer:

1. opt a

2.opt c

3.opt b......

Answer 2

6. a

7 c

8 d

hopefully it help you mark me BRAINLIEST