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Chemical Changes
- the release of gas
- greater changes of heat
- the generation of light
- a change of color
- the formation of a precipitate
These are chemical changes because they change the substance's properties.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoPhysical Reactions: cutting, folding, grinding, dissolving, melting
Chemical Reactions: burning, exploding, rusting, corroding, cooking
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What are three things that are often indications of chemical changes?
Chemical changes can be identified by 1. Color change 2. Fizzing 3. Temperature changes 4. Odor changes 5. Change in the state of matter (solid, liquid, gas)
Are chemical changes irreversible If yes then what about the chemical reactions that are reversible Don't we say that all chemical reactions are chemical changes?
some chemical changes can be reversed but they are hard to reverse usually
Differences between physical changes and chemical changes?
Physical changes are reversible changes, such as change of state (boiling, melting etc), chemical changes are when something undergoes a reaction changing it's chemical makeup.
Are the changes produced by electrolysis chemical or physical in nature?
The changes produced by electrolysis are chemical.
Which occurs more often on earth physical changes or chemical changes?
what involves both chemical and physical change on earths surface
What are 5 chemical changes performed in school?
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Write 5 activities at home that undergo chemical changes?
putang ina
What are three things that are often indications of chemical changes?
Chemical changes can be identified by 1. Color change 2. Fizzing 3. Temperature changes 4. Odor changes 5. Change in the state of matter (solid, liquid, gas)
What are the chemical and physical changes of photosynthesis?
There are no physical changes. there are only chemical changes.
do oreos undertake any chemical changes?
Do Oreos undertake any chemical changes? Yes. How can Oreo be a chemical changes? Cooking involve chemical reactions, modifications of chemical molecules.
Are chemical changes irreversible If yes then what about the chemical reactions that are reversible Don't we say that all chemical reactions are chemical changes?
some chemical changes can be reversed but they are hard to reverse usually
What is the process in which substances undergo chemical changes called?
chemical changes
What can chemical changes change?
Cooking food can cause chemical Changes
Are all physical changes accompanied by chemical changes?
Not all chemical changes are accompanied by a visible physical change. Most chemical changes however will be accompanied by a physical change.
Is iron physical changes or chemical changes?
Iron is a chemical element, not a change.
Differences between physical changes and chemical changes?
Physical changes are reversible changes, such as change of state (boiling, melting etc), chemical changes are when something undergoes a reaction changing it's chemical makeup.
What are the 5 signs of a chemical changing?
Five signs of Chemical changes are... 1. light is emitted 2. sound 3. new smell 4. bubbles 5. changes in density There are more than five signs, but theses are the ones I can think of right now.
