add a chemical.
It is a physical change.
physical water and eggshells do not chemically bond
mix 2 hidrogens with 1 oxygen
is dissolving a chemical or physical changeWell, it is not. Because you are not changing the chemical identity of the solid. It's still solid chemically and water chemically.
It is a physical change because salt is not changed chemically.
If you dissolve salt in water you have not changed the materials chemically.
It's a physical change ! Chemically it's still water (ice).
No, a stone soaking in water is a physical change, not a chemical change. The stone remains the same chemically, but its physical state is altered due to the water absorption.
4. decomposing of water explanation: a chemical change is when you chemically change a substance, and a new one is formed
Physical, but the pond does not chemically change - you still have water and pond goo, only the water has evaporated.
Making lemonade is a physical change because the powder and water do not combine chemically. It becomes an aqueous mixture.
The sugar is not chemically changed / oxidized. Gently evaporate the water, and you get the sugar back.