BALANCE THE EQUATION FIRST Barium reacts with copper I phosphate according to the following equation:

Ba + Cu3PO4 --> Ba3(PO4)2 + Cu

If 1.92 grams of barium react, how many grams of barium phosphate is produced?

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol