can someone help me with these chemistry problems..?

Question

I have chemistry homework problems that i need help with. if you can help with explaining the answers too that would be so much help so i can actually understand this!
1. Is the following reaction and ocidation reaction or reduction reaction?
Ni(s)-->Ni^2+(aq)+ 2e-

2. Chemical properties of hydrogen compounds can have vast differences depending on the state of matter (solid, liquid or gas). The difference in chemical properties is related to

a.the dissociation of H+ from the hydrogen compound into solution.
b.the dissociation of OH- from the hydrogen compound into solution.
c.the energy threshold required to break the covalent bonds in the solid.
d.the slight cohesion of the liquid solvent forming the aqueous solution.

3. Choose the word that best completes the following statement. In a neutralization reaction an acid and base react to form water and ____.
a.salt b.metal c.ionic compound d. ester

4. An increase in [H+] in moles/liter would result in
a.an increase in alkalinity (baseness).
b. an increase in acidity.
c. an increase in pH.
d. approaching a pH near 7.

5. There are two solutions. One has a pH of 3, and the other has a pH of 8. In which solution is the [H+] in moles/liter greater than the [OH-]?

6. Lycopene is an example of a(n)
a.reducing agent
b.antioxidant
c.base
d.oxidizing agent
e.acid

7. An increase in the [H+] in a solution would result in
a.an increase in alkalinity (baseness).
b.an increase in acidity.
c.a pH of 7.
d.a decrease in pH.

9.The negative logarithm of the hydrogen ion concentration, in moles per liter. This is the definition of
a.respiratory alkalosis
b. buffer systems
c.metabolic alkalosis.
d.pH.

9. Does water act as an acid or a base or both? Explain and support your answer.

Answer 1

1) oxidation. e- are removed in an oxidation RXN, so they are written on the product side of the reaction.

2) B, C ?

3) "A" salt

4) "B"

5) pH of 3 has more H+

6) "B"

7) "D"

8) "D"

9) Both. water is neutral (pH = 7)
water is H+ from acid combined with OH- from base.

Answer 2

a million cubic centimeter=1cm3 a million litre=1000cm3 hence, 111cm3=111/one thousand litres = 0.111litres >>> a million sq. centimetre=1cm2 1cm2= 14nm2 hence, 33cm2 = 33 x 14 = 462 nm2 (sq. nanometer)