0
What else can I help you with?
When solid gold is melted does it undergo a chemical change?
No, unless it reacted with a gas in the air around it. Melting is a physical change.
If you cut a solid in two pieces does the mass change?
The total mass remain unchanged but each piece has its mass.
What happens when a solution of salt water is boiled and the water evaporates and solid salt remains?
The salt and the water have both undergone physical changes.
Where do molecules go when ice melts?
The melting of ice is a change of phase, from solid to liquid, a physical processus. The molecules of water (H2O) remain unchanged during the change of phase.
When a puddle of water evaporates does it change into a new kind of matter?
Water remain water, only the state of matter is changed from liquid to solid.
Explain why water freezing is not a chemical change.?
Because the chemical formula remain the same - liquid water or ice or vapour.
When solid sulfur is broken down is it physical or chemical changes?
It is a physical change, the chemical form remain unchanged.
Classify as chemical and physical change-freezing of water?
Freezing of water is a physical change because it involves a change in state from liquid to solid without altering the chemical composition of water. The molecules in water rearrange to form a crystalline structure in the solid state but remain as H2O molecules.
Is snowflakes melting a chemical change?
Melting snowflakes is a physical change, not a chemical change. The water molecules in the snowflake remain the same chemical composition before and after melting, they just change from a solid to a liquid state.
A change that begins and ends with the same type of matter?
An example of a change that begins and ends with the same type of matter is the process of water changing from a solid (ice) to a liquid (water) and back to a solid (ice). In this process, the water molecules remain the same, just in different states of matter.
What are phisycal changes in matter?
Physical changes are changes that only change the appearance of an object, but not the type of matter. For example, if a metal bike rusts the bike will still remain a solid. That is a physical change.
Which state of the three states of matter is the volume most affect?
A solid will remain the same volume and shape A liquid will remain the same volume but change shape to its container A gas will expand its volume to fill its container entirely
