Reversible and Irreversible changes

Front

The ability of matter to dissolve in a liquid is called __

Back

solubility

Front

Why does the solute dissolve faster when we stir the solute?

Back

Because, when we stir the solute, the particles of the solute will move around and spread out into the space between the particles of the solvent.

Front

What caused the change of a piece of iron from shiny to rusty?

Back

a chemical reaction

Front

Condensation involves a change of state from ___ to ___

Back

Gaseous to Liquid

Front

Mixing Mentos and Coke is an example of a __ change.

Back

Chemical

Front

What is a reversible change?

Back

A reversible change is a change that can be undone, returning the substance to its original state.

Front

What is an irreversible change?

Back

An irreversible change is a change that cannot be undone, resulting in a new substance.

Front

Give an example of a reversible change.

Back

Melting ice to water and then freezing it back to ice.

Front

Give an example of an irreversible change.

Back

Baking a cake, where the ingredients change into a new substance.

Front

What happens during a physical change?

Back

The form of a substance changes, but its chemical composition remains the same.