Hi, I'm really stuck on my assignment! Please help me out

Write balanced and full ionic equations for the reaction between:
Magnesium and sulphuric acid.

I've got the balanced equation: Mg + H2SO4 -> MgSO4 + H2
But what is the ionic equation?

Zinc oxide and sulphuric acid.
My balanced equation is: ZnO + H2SO4 -> ZnSO4 + H2O
But ionic equation???

And if you're feeling extra kind you could try and enlighten me on oxidation/reduction

Sorry for all this, I've missed a few lessons and I'm so confused!

I'll do the first one:

On the left side, Mg is elemental and not ionized. It stays the way it is.

Sulfuric acid (H2SO4) is a strong acid and ionizes to 2 protons (H+) and one sulfate with 2 negative charges (SO4--)

So for the left side of the equation we have

Mg + 2H+ + SO4--

On the left side we have hydrogen gas, which is elemental so that stays as is.

Then we have magnesium sulfate, which is soluble and ionizes to Mg++ and SO4--

So the entire equation is:

Mg + 2H+ + SO4-- -> Mg++ + SO4-- + H2

You'll notice that the SO4-- is constant on both sides. It remains in solution throughout the reaction, and isn't really involved in the reaction (it's job is just to counter-balance the positive charges, since the solution must be electrically neutral). Because SO4-- is on both sides, you can cross it out to balance it.

Mg + 2H+ -> Mg++ + H2

So you can see that 2 electrons have been transferred from the magnesium to the hydrogen protons.

Hope this helps.