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Question 44 Fill in the blanks (a) In a chemical reaction, the sum of the masses of the reactants and products remains unchanged. This is called ___. (b) A group of atoms carrying a fixed charge on them is called ___. (c) The formula unit mass of Ca3(PO4)2 is ____. (d) Formula of sodium carbonate is ___ and that of ammonium sulphate is ____.

Answer»

Question 44
Fill in the blanks

(a) In a chemical reaction, the sum of the masses of the reactants and products remains unchanged. This is called ___.

(b) A group of atoms carrying a fixed charge on them is called ___.

(c) The formula unit mass of Ca3(PO4)2 is ____.

(d) Formula of sodium carbonate is ___ and that of ammonium sulphate is ____.



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