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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.
What else can I help you with?
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.
What type of change is teeth crushing food physical or chemical?
It is physical. The tooth is broken into smaller pieces, but the pieces are still made of the same substances.
What type of change is a board being cut into two pieces?
physical
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.
What suggests that a physical change has taken place in a ice cube?
A physical change in an ice cube can be suggested by observing a change in its shape, size, or phase. For example, if an ice cube melts into water or is crushed into smaller pieces, it indicates a physical change has occurred.
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 breaking coal into pieces chemical or physical change?
Breaking coal into pieces is a physical change because it does not alter the chemical composition of the coal. The coal remains composed of the same elements before and after being broken into pieces.
Is tearing a clothes into pieces a physical or chemical change?
Physical.
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 changing the size and shape of pieces of wood a chemical change true or false?
False. Changing the size and shape of pieces of wood is a physical change, not a chemical change. A chemical change involves the alteration of the chemical composition of a substance, while a physical change only affects the physical properties of a substance.
Is mixing of glass pieces and sand a chemical change or physical change?
it is a chemical change.
Is cutting wood into 10 pieces a physical or chemical change?
That change would be physical, since the chemical identity of the wood has not been altered by cutting it.
