What describes a chemical change?
Understand the Problem
The question is asking for the characteristics or features that define a chemical change, which typically includes aspects like the formation of new substances, changes in energy, and irreversibility in many cases.
Answer
Formation of new substances with different properties.
A chemical change results in the formation of one or more new substances with different properties due to the breaking and forming of chemical bonds.
Answer for screen readers
A chemical change results in the formation of one or more new substances with different properties due to the breaking and forming of chemical bonds.
More Information
In a chemical change, new substances are formed with properties different from the original substances because chemical bonds are broken and formed.
Tips
A common mistake is confusing chemical changes with physical changes, where only the form or state of the substance changes, but the substance itself remains the same.
Sources
- Chemical Change vs. Physical Change - Chemistry LibreTexts - chem.libretexts.org
- Changes in Matter: Physical vs. Chemical Changes - education.nationalgeographic.org
- Identifying physical and chemical changes - Education | vic.gov.au - education.vic.gov.au
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