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A physical change is when something changes from one state of matter (solid, liquid, or gas) without changing chemical composition. When ice melts or water freezes or evaporates, it remains H2O, so these are physical changes.

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What describes any change in matter that does not affect the chemical composition of the material?

Physical change, as change in state.


Is flammable a physical change?

Flammability is not a physical change; it is a chemical property of a substance. It describes the ability of a material to ignite and burn in the presence of an ignition source. When a substance burns, it undergoes a chemical change, transforming into different substances such as gases and ash, which is distinct from a physical change that does not alter the chemical composition of the material.


How many adjectives are in the following sentence After playing in the hot sun you drank two glasses of cold water?

There are three adjectives because an adjective describes a noun. Hot is an adjective because it describes sun, two is an adjective because it tells how many glasses you drank, and cold is an adjective because it describes water.


Why is dencity a physical change?

Density is classified as a physical property because the density of a substance can change when the substance changes state. Example: When water evaporates it is a physical change and the density changes. A chemical property is a property that describes its ability to react chemically with other substances and THEREFORE density is not a chemical property.


Is the melting point of silver a physical or a chemical property?

The change in the state of matter between solid, liquid and gas are not chemical changes. The melting point of a substance, silver in this case, is a physical characteristic.