What substance cannot be broken down by chemical change

Chemistry

1 answer:

ki77a [65]3 years ago

5 0

Potassium is the simplest form of matter and therefore can not be broken down by chemical change.

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When an alkaline earth metal, a, reacts with a halogen, x, the formula of the covalent compund formed should be a2x?

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Alkaline earth metals - Be , Mg Ca, Sr , Ba, Ra

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Halogens - F, Cl, Br, I, At

When Alkaline earth metal (metals) combine with Halogens (non-metals) the compound formed will be ionic compound and the formula of the compound will be based on the charges of the element.

When we write the formula of the ionic compound the charges of the elements get criss crossed.

For example - Mg (Alkaline earth metal) have a charge of +2 and Cl (Halogen) have a charge of -1 and when they combine to form the formula their charges get criss crossed and we will get $Mg_{1}Cl_{2}$ or $MgCl_{2}$

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3 years ago