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3 years ago

Enter the formula for the compound formed between potassium and sulfur.

Chemistry

1 answer:

Whitepunk [10]3 years ago

7 0

Answer:

K₂S

Explanation:

A chemical formula is a formula showing the symbols of elements present in a compound.

It shows the symbols of the elements in a compound and the number of atoms of each element in the compound.

To write the formula of the compound we need to;

First, identify the elements in the compounds and their symbols

In this case, the symbols of potassium and sulfur are K and S respectively.

Secondly, we need to know their valency.

Potassium has a valency of 1 since it reacts by losing one electron to attain stability while sulfur has a valence of 2 since it reacts by gaining two electrons to attain an octet configuration.

So, we have K¹S²

Thirdly, we write the formula with each element taking the valency of the other element as a subscript.

We get our formula as K₂S.

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Read 2 more answers

Magnesium oxide forms from magnesium metal and oxygen gas O2. Write a word equation and an unbalanced formula including physical

sergiy2304 [10]

Answer:

See explanation

Explanation:

The word equation is just a statement of the reaction in words as follows;

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