Question

What physical change happens to atoms and molecules in a solution that is strongly heated in a flame? Is there a phase change? If so, what is it?

Answer 1

When atoms and molecules speed up or slow down, that is a physical change. When they change state from liquid to solid or from gas to liquid, that is a physical change. ... The ions or molecules can still come back together to form the original substance

Answer 2

The physical change which happens to atoms and molecules in a solution that is strongly heated in a flame is;

• The atoms and molecules gain energy and their internal energy is increased.
• If the heat energy is sufficient, there is a phase change and this phase change is from liquid to gas (evaporation).

Heating and Phase changes

Atoms and molecules which are units of matter when strongly heated in a flame have increased internal energy and would undergo a phase change to a more energetic state of matter which is the gaseous state.

As such, the physical change that occurs in them is. increased internal energy.

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