Which statement best describes what happens during a chemical change? Both the identity and the properties of a substance change.
Some properties of a substance change, but its identity remains the same.
The chemical properties of a substance change, but its physical properties rema
The physical properties of a substance change, but its chemical properties rema

Both the identity and the properties of a substance change.

Explanation:

During most chemical reactions, both the identity and the properties of substances changes. The chemical and physical properties of a substance often changes during this kind reaction.

A chemical change has the following properties:

Both the identity and the properties of a substance change.

Explanation:

In a chemical change, the matter gets transformed or changed into a new substance. In doing this, the identity of the substance, and its properties change as well.

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a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

the answer your looking for is c).