Question

The statement which describes a physical property of the element oxygen is ​

1. ​oxygen is needed for the rusting of iron
2. oxygen supports the burning of paper
3. oxygen has a density of 1.43 grams per liter
4. ​oxygen must be present for food to decay

Answer 1

The answer is 3. Oxygen having a density of 1.43 grams per liter describes a physical property of the element oxygen. A physical property is a property that can be observed or measured without changing the composition of matter and density is one physical property.

Answer 2

The correct answer is option 3. Oxygen having a density of 1.43 grams per liter describes a physical property of the element oxygen. A physical property is a property that can be observed or measured without changing the composition of matter and density is one physical property.