Predict the formula for ba 2 and s-2.

The chemical formula for the compound formed will be

Explanation:

Barium is the 56th element of the periodic table having electronic configuration of

This element looses 2 electrons and thus shows an oxidation state of +2 units.

Sulfur is the 16th element of the periodic table having electronic configuration of

This element requires 2 electrons and thus shows an oxidation state of -2 units.

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

Thus, the chemical formula for the compound formed will be

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

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