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When water changes to steam it undergoes a chemical change true or false?
Wiki User
∙ 7y ago
No. It is still water. So that makes it a physical change.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoFalse
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In examples of chemical changes the odor of sour milk indicates a chemical change has taken place true or false?
True
Is it true or false that indications of a chemical change include light heat and gas production?
True. Chemical changes can vary from colour change to gas production.
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No. That is a chemical change. In a physical change, their is no change in chemical composition forming one or more new substances.
The changes that are visible during a chemical reaction are signs that the?
If it is a true or false question it is false
Changing water to ice is an example of a chemical change true or false?
I'd say no. Melting just changes the physical properties. Example: A rubber ball. If you melt a rubber ball it will still be rubber, just in a different form.
Is it true are false that a physical change of a substance changes its chemical makeup?
true
When chemical change takes place the total number of atoms changes?
False.
In examples of chemical changes the odor of sour milk indicates a chemical change has taken place true or false?
True
When a wave changes speed as it enters a new mediu does it undergoes diffraction?
false
Is it true or false that indications of a chemical change include light heat and gas production?
True. Chemical changes can vary from colour change to gas production.
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No. That is a chemical change. In a physical change, their is no change in chemical composition forming one or more new substances.
Is it true that Physical changes are often accompanied by changes in color or odor?
No, a chemical change is usually accompanied by a change in color or odor. A physical change is a change that is the same substance before and after and usually accompanied by a change in state of matter (evaporation, condensation, melting, freezing, sublimating, etc).
Figure of speech is the common meaning of words undergoes a decided change in meaning?
False.
The changes that are visible during a chemical reaction are signs that the?
If it is a true or false question it is false
Water can change from liquid to gas only through a chemical reaction true or false?
This is considered a physical change. The distinction between physical and chemical changes are subtle and the line is not clear cut. Chemical changes tends to involve reactions and the rearrangement of bonds and atoms. Physical changes tend to involve changes in properties without a reaction, so water changing from a gas to a liquid is a change of state but it is still water, the only bonds that would be broken are weak intermolecular interactions.
Is this true or false in a chemical change other forms of energy cannot be changed to chemical energy?
False
A functional group changes the structure of a compound but does not alter its chemical properties?
I'm pretty sure it's false... if you change a group the compound has to change because its not the same anymore
