Count the number of atoms in each formula. Type your answer in the box to the right of the formula. 1) AgNO2 =
2) 2Fe2O3 =
3) (NH4)3PO4 =
4) 3CaCl2 =

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

What type of context clue you understand the meaning of  quandary?