the thing is I never learned the formulas. the math packet I have had some stuff I had to learn. my math class was the intermediate and we never got anything done.
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I think that what my teacher wants me to do is the one on this question, like the one where it says "heating CuCO3", because heat+CuCO3 is one of the questions on my worksheet too. And he wants us to name what kind of reaction it is like single displacement, double displacement, combustion, synthesis, decomposition, etc. I don't really get how you get CO2+CuO from adding heat to CuCO3 though.