Completeaza urmatoarele reactii chimice : a) HgO ++ b) H2O++ c) KCIO3+KCI+ d) H2O2+H2O+ e) CaCO3++ f) +CO2+H2O g) + CuO+H2O

Answer explain why it is not possible to deduce a complete order of reactivity.

The following transition occurs at a molecular level for a substance. what transition corresponds to this change in microscopic structure? the carbon dioxide molecules on the left are in a regular, tightly packed pattern. after heating, it becomes much lower density. a. melting b. boiling c. sublimation d. freezing

What is the force of an object when it landed(sitting in the ground)