00:01
So in order to be able to do this question, you've got to know the formulas for these compounds.
00:07
And zinc carbonate is an ionic compound, and it's made of zinc ions that have a charge of 2 plus, and carbonate ions that have a charge of 2 minus.
00:17
So zinc carbonate is zn, co3.
00:23
Now that's being heated, and so that's the reactant, and it's going to give zinc oxide.
00:31
And so zinc oxide is the combination of a zinc ion, which is 2 plus charge, and an oxide ion, which is a 2 minus charge.
00:40
And so that gives the formula zno, right, one of each ion again to balance out those charges that each has.
00:50
Carbon dioxide is the other product, and so that we can figure out the formula of that molecule simply by its name, co carbon dioxide, one carbon, and two.
01:03
Oxygen.
01:05
Now we need to make sure that this equation is balanced...