1.

5 g of calcium combine with 2 g of oxygen to form a compound . find the molecjlar formula of the compound

Answer»

The answer will be 56.Explanation:CALCIUM and Oxygen combine to form Calcium Oxide. 2Ca + O2 → 2CaOTherefore 5G of Calcium and 2G of Oxygen gives 7 g of Calcium Oxide.The MOLECULAR formula of CaO will be = Molecular MASS of Calcium + Molecular mass of Oxygen = 40+16 = 56.Hope this was helpful...



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