Question

Fill in the blanks.
1. Materials that shine are called__________
2. Grouping things on the basis of common properties is called __________
3 _________ is a gas insoluble in water.
4. The mass per unit volume of a substance is called_________
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Answer 1

1) Lustrous

2) Classification

3) Nitrogen & Methane

4) Density

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Answer 2

1) Lustrous

2) classification

3) Methane

4) density

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