Question

a student listed some information about calcium chloride (cacl₂) in their notebook
calcium chloride data

• color/texture – white/granular
• density – 2.15 g/cm³
• melting point – 772°c
• reaction with water – releases energy

which of their notes listed indicates a chemical property of calcium chloride (cacl₂)
it is white and granular.
the density is 2.15 g/cm 3.
the melting point is 772°c.
it releases energy when it reacts with water.

Explanation:

A chemical property is a characteristic of a substance that is observed during a chemical reaction. The reaction of calcium chloride with water releasing energy is a chemical change (a reaction occurs), so this indicates a chemical property. Color, texture, density, and melting point are physical properties as they can be observed without changing the substance's chemical composition.

Answer:

It releases energy when it reacts with water.