Consider this reaction: 3Ca + 2H3PO4 3Ca + 2H3PO4 --> Ca3(PO4)2 + 3H2 How many moles of calcium are required to produce 8.9 moles of calcium phosphate?​

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate