Chemistry Pre Lab
2 more posts in this thread. [Missing image file: ]
I don't know if I can ask for homework help here, but seeing how must other places are retarded or refuse to help, I'll try here. A student attempts to identify an unknown compound by using chemical reactions to calculate mass relationships. After heating a sample weighing 0.4521g, the mass decreased to 0.3400g. When the product was reacted to form a chloride, the resulting mass was 0.3304g.
a) Is this unkown a carbonate or hydrogen carbonate? and why?
b)Given the answer to part a, the unknown is one of what two compouns?
c)Write the overall balanced chemical equations for the reaction of each possible unkown with HCI.