QuestionIdentify which of the following does not describe a physical property: boiling point, density, combustibility, or state at room temp.
Studdy Solution
STEP 1
Assumptions1. The boiling point of water is a physical property.
. The density of Al at room temperature is a physical property.
3. The combustibility of gas when heated in air is a physical property.
4. The state of at room temperature is a physical property.
STEP 2
We need to understand the difference between physical and chemical properties. Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter.
STEP 3
The boiling point of water is a physical property because it can be measured without changing the composition of water.
STEP 4
The density of Al at room temperature is a physical property because it can be measured without changing the composition of Al.
STEP 5
The state of at room temperature is a physical property because it can be observed without changing the composition of .
STEP 6
The combustibility of gas when heated in air is a chemical property. Chemical properties can only be observed during a chemical reaction. Combustibility refers to the ability of a substance to burn in air, which involves a chemical reaction.
The statement that does not describe a physical property is "H2 gas is combustible when heated in air."
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