What do the coefficients in chemical equations involving gases, solids, and liquids represent?

150.0 grams of asf3 were reacted with 180.0 g of ccl4 to produce ascl3 and ccl2f2. if the actual yield of ccl2f2 was 127 g, what is the percent yield?

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?