Question

Chemistry help?

Which is the correct balanced equation that shows the process of iron oxide (Fe2O3) explosively combining with aluminum (Al) to produce iron (Fe) and aluminum oxide (Al2O3)?
A. Fe2O3 + Al → Fe + Al2O3
B. Fe2O3 + 3Al → 3Fe + Al2O3
C. Fe2O3 + 2Al → 2Fe + Al2O3
D. 2Fe2O3 + 2Al → 2Fe + 2Al2O3
(i think it is A..?)

A student dissolves some solid sodium hydroxide in a beaker of water.
Which are the solute and the solvent?
Choose all answers that are correct.
A. solute: sodium hydroxide
B. solute: water
C. solvent: sodium hydroxide
D. solvent: water
(i think it is B, C)

Which statement correctly explains whether or not this equation is a balanced equation?
KMnO4 + HCl → KCl + MnCl2 + H2O + Cl2
A. The equation is not balanced because the number of atoms of each element on the left is not equal to their numbers on the right.
B. The equation is not balanced because there are not any numbers in front of the compounds.
C. The equation is balanced because it has equal amounts of reactants and products.
D. The equation is balanced because it has one of each compound.

Which answer correctly describes the difference between covalent and ionic bonds?
A. ionic: transfer of electrons
covalent: transfer of protons
B. ionic: sharing of electrons
covalent: transfer of electrons
C. ionic: transfer of protons
covalent: transfer of electrons
D. ionic: transfer of electrons
covalent: sharing of electrons

If you could put explanations as to why it is whatever that would be nice? I dont really understand any of it very well. thanks