Chemistry exam! i suck at this?

Hello Tasha. The thing is that I a don't know anything about this, such as that of what type of bond is formed a when calcium combines with a oxygen to make a calcium oxide a and etc. Though I a am going to eight grade on September( though suppose to go to high school by now a), I a think that the answer for number 3 a is a, a ionic bond a when a calcium combines with oxygen to make a calcium oxide a and etc. The calcium is a metal and oxygen is a nonmetal a. a When you a combine a metal with a nonmetal to form a compound a it is called a ionic compound or a ionic bond a. a The other questions a I a don't know yet a, though I a think a that the answer for a number 4 a is d and etc. a Good job a if you a p a the chemistry exam, though I a know a that this is a really hard test a that which I a don't know a what a is the equation of the aluminum oxide a and some other things a and etc.