Write the empirical formula for at least four ionic compounds that could be formed from the following ions:
a). po_4^3-,
b). nh_4^+,
c). fe^3+,
d). clo_3^-

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above

The solubility of barium nitrate is 9.02 g/100 g h2o at 20°c. a 15.2 g sample of barium nitrate is added to 200.0 g of water at 20°c. is the solution saturated, unsaturated, or supersaturated? a. unsaturated b. saturated c. supersaturated