1. The problem statement, all variables and given/known data The problem statement is: complete each equation by writing the correct products and identifying the type of reaction. 2. Relevant equations Here are the revelation equations: BaO(s) + Mg(s) --> CaOH(aq) + HCl (aq) --> MgCl(aq) + S(s) --> 3. The attempt at a solution OK. Let me start off by saying that the above equations are not going to be graded by my teacher (I'm in Gr 10 Science). We are given home work, but we have to do it anyway in order to understand it for an evaluation at the end of the week. We also don't correct home work in class and aren't given answers which makes it a little more difficult, so I have read what I could find online, and finally signed up here in order to try to get some clarification on some concepts. If you guys could also help me with some follow up questions along the way, that would be great too. First, I figured the first one would be a single displacement resulting in: BaO(s) + Mg(s) --> Ba + MgO my rationale here is that a switch has to take place where a metal (Mg) pairs up with a non-metal (O). I am assuming it's already balanced. Second one seems to be a double displacement which would result in: CaOH(aq) + HCl (aq) --> CaCl2 + H2O that would need to be balanced but are the products correct? My understanding is that, once again, a metal to a non-metal. Third one seems to also be a single displacement with the products being: MgCl(aq) + S(s) -->MgS + Cl Are my answers above correct, and if not, could you provide some explanations and tips as to how to correctly predict these products. thanks.