List the elements that make up the compound copper sulfate

Asolution has a ca2+ concentration of 0.049 m and an f- concentration is 0.147 m at equilibrium. the value of ksp for caf2 at 25°c is 4.0 x 10-11. will this solution form a precipitate? yes no

Name the element in group 17, period 2. (periodic table)

What is the empirical formula for c4h8o2