Callium carbonate reacts with phosphoric acid to produce calcium phosphate, carbon Hioxide and water 3CaCO 3 (s)+2H 3 PO 4 (aq) Ca 3 (PO 4 ) 2 (aq)+3CO 2 (g)+3H 2 O(l) ) Assuming STP, how many liters of carbon dioxide are produced when 5.74g of CaCO 3 reacts with an excess of H 3 PO 4 .

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

What is a property of a double replacement reaction

The biosphere of the earth is made up of what compound? organic or inorganic?