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What are the 5 pieces of evedence that a physical change has occurred?
Wiki User
∙ 15y ago
During a chemical change, you may observe any or all of the following:
1. Color change.
2. Temperature change, either hotter or cooler.
3. Bubbles or "fizzing," which signals the production of a gas.
4. A smell that wasn't there before.
5. The production of a precipitate, which is a solid coming out a liquid solution.
Wiki User
∙ 11y ago
Wiki User
∙ 12y ago- dissolving
- same material
- shape
- state
- size
- reversable
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What is a sign that a chemical change has occurred smoke broken pieces change in shape or change in state?
The production of smoke from something burning would be a sign of a chemical change. Broken pieces, change in shape, or change in state are all physical changes.
Is broken pieces a sign that a chemical change has occured?
Not really. A broken glass is still glass; no chemical change has occurred. But it is physically different, so it is better to say a physical change happened.
Is tearing a clothes into pieces a physical or chemical change?
Physical.
Is crush a physical change?
Crushing creates a physical change in the size of the pieces but it does not change their chemical make up.
Is crushing an aspirin a physical or chemical change?
Crushing an aspirin is a physical change because the small pieces are still chemically the same as the aspirin tablet.
What is a sign that a chemical change has occurred smoke broken pieces change in shape or change in state?
The production of smoke from something burning would be a sign of a chemical change. Broken pieces, change in shape, or change in state are all physical changes.
Is breaking coal into pieces chemical or physical change?
physical
Is broken pieces a sign that a chemical change has occured?
Not really. A broken glass is still glass; no chemical change has occurred. But it is physically different, so it is better to say a physical change happened.
Is tearing a clothes into pieces a physical or chemical change?
Physical.
Is crush a physical change?
Crushing creates a physical change in the size of the pieces but it does not change their chemical make up.
If something is broken into tiny pieces is it a chemical or physical change?
Physical.
When a piece of paper is torn into two pieces has it undergone a chemical change or physical change?
It encountered a physical change.
Is tearing paper into smaller pieces a chemical change?
no... its a physical change
When a bottle breaks into pieces does it undergo a chemical or physical change?
It is a physical phenomenon.
Is mixing of glass pieces and sand a chemical change or physical change?
it is a chemical change.
Is paper torn into serveral pieces a physical change?
Yes.
What physical change occurs to food in the human mouth?
One physical change is when you bite and tear your food into smaller pieces
