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krek1111 [17]
2 years ago
15

1. we used __________ to represent an element.

Chemistry
2 answers:
Ludmilka [50]2 years ago
8 0

Answer:

1. we used <u>chemical</u><u> </u><u>formula</u> to represent an element.

choice a. is correct

2. the chemical formula of a molecule shows the <u>number and kind of atoms contained in the molecule</u>.

choice c. is correct

3. which of the following is an atom?

= K [Potassium]

choice a. is correct

4. which of the following is a molecule?

= CO [Carbon Monoxide]

choice d. is correct

scoundrel [369]2 years ago
6 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

1. we used <u>Symbol</u> to represent an element.

2. The chemical formula of a molecule shows the <u>number and kind of atoms contained in the molecule</u>.

3. K (potassium) is the atom among the given choices.

4. CO (carbon - monoxide) is the molecule among given choices.

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