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Fill in the blanks with the correct word or phrase.

1. An__________is a substance that cannot be broken down into simpler substance.
2. __________are chemical combinations of elements.
3. the chemical symbol of oxygen is__________
4. elements are made up of__________
5. compounds are made up of__________
6. the element usually found in your bones is__________
7. the most common metallic element used in the production industry is__________
8. carbon dioxide is an example of a__________
9. the chemical symbol for sodium is__________
10. the element that is represented by the symbol mg is__________​


Sagot :

ANSWERS:

1. An element is a substance that cannot be broken down into simpler substance.

2. Compounds are chemical combinations of elements.

3. The chemical symbol of oxygen is O.

4. Elements are made up of atoms.

5. Compounds are made up of two or more atoms of different elements.

6. The element usually found in your bones is calcium.

7. The most common metallic element used in the production industry is iron.

8. Carbon dioxide is an example of a compound.

9. The chemical symbol for sodium is Na.

10. The element that is represented by the symbol mg is magnesium.