PDA

View Full Version : Chemical equation


saketh
May 11, 2009, 04:23 AM
:mad:madyou fools mentals can't you tell a VII class question answer you waste fellow useless donkeys I am asking the last time how to predict the products of a chemical equation if the reactants are given

Unknown008
May 11, 2009, 05:49 AM
What do you mean Saketh?

There are lots of possible reactions, some of them have a general equation, but the others are tricky. One cannot easily tell what are the products from a given sample of reactants unless the reaction is done in the lab and the products analysed, one already knows the reaction.

You have the
-Metal plus acid, basic one

Metal + Acid -> Metal Salt + Hydrogen Gas

-Burning of metals

Metal + Oxygen -> Metal Oxide

-Metal oxide and acid

Metal oxide + acid -> Metal Salt + Water

-Metal Carbonate and acid

Metal Carbonate + Acid -> Metal Salt + Carbon Dioxide + Water

-Decomposition of metal carbonate through heat

Metal Carbonate -> Metal oxide + carbon dioxide

amongst others. Of course, there are exceptions to the general equations, like the reaction of Copper and Hydrochloric acid

C + HCl -> No reaction