Please help: Write out the balanced equation for the reaction of these elements with oxygen.?

Question

I don't understand how to do this ...

The elements calcium, barium strontium, zinc, cadmium, and others combine with oxygen in the same ratio as magnesium. Write out the balanced equation for the reaction of these elements with oxygen.

I would be so grateful if anyone could help.

Answer 1

Check the 'Periodic Table of Elements'. Each metal named and the Oxygen have a valency of 2. Therefore, 2 atoms of the metal and 2 atoms of oxygen are required in each oxide molecule.
2Ca + O2 = 2CaO
2Ba + O2 = 2BaO
2Sr + O2 = 2SrO
2Zn + O2 = 2ZnO
2Cd +O2 = 2CdO

Answer 2

while writing any of those equation undergo in strategies those 3 formulae. a million.. Acid + Base = Salt + Water 2.. Acid + carbonate = Salt + carbon dioxide + water 3.. Acid + steel = Salt + hydrogen gas Acid + Base = Salt + Water Nitric acid + Calcium hydrodixe =calcium nitrate + water 2HNO3 + Ca(OH)2 = Ca(NO3)2 + 2H2O The salt is Ca(NO3)2 through fact Ca have a 2+ cost and that they replace the valence

Answer 3

General form:

2 M + O2 ---> 2 MO