(40 points) the table below gives formulas for some ionic compounds formed when cations (x, y, z) combine with anions (a, l, d, f). a. what are the charges for each cation and anion (4 points) b. write formulas for compounds 1-4 (2 points)

If a solution had a ph of 7 what is the solution

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.