0
when atoms are combined or taken away and form a different molecule the substance you started with can no longer re-take its original form...example wood to ash from fire or heat, NOT an example is water to steam, that is a physical change and you can condense steam to re-make water.
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoALWAYS .... formation of a new substance with different properties.
Sometimes formation of a gas.
Sometimes precipitation.
Sometimes heat transfer.
Wiki User
∙ 13y agobubbles (formation of a gas), production of heat or cold (exothermic or endothermic reaction), change in color to name a few
Wiki User
∙ 13y agoChange in temperature, color or size
Add your answer:
Earn +20 pts
Are Fizzing or foaming evidence that a chemical change may have occurred?
yes it s an evidence that a chemical change has been occurred
Is a smelly sock a chemical or physical change?
A smelly sock is a chemical change because the release of odor is a result of chemical reactions occurring within the sock.
Is turning cloudy a chemical change?
A solution turning cloudy is evidence of a chemical change.
What does evidence chemical change mean?
It means it has evedince to change
When you mix a pink powdered substance in water and mix it is that a chemical change?
Mixing is not itself a chemical change. There could be one occurring as a result, but nothing you described indicated any kind of chemical change.
When magnesium is burning in the presence of oxygen what are some evidence that a chemical change is occurring?
It shows the change of when the magnesium is burning in the presence of oxygen.
Are Fizzing or foaming evidence that a chemical change may have occurred?
yes it s an evidence that a chemical change has been occurred
Is a smelly sock a chemical or physical change?
A smelly sock is a chemical change because the release of odor is a result of chemical reactions occurring within the sock.
What does friction occurring at an interface always produce?
chemical change
Is mixing salt water and silver nitrate chemical change or physical change?
The occurring precipitation os solid AgCl is a chemical change.
Is turning cloudy a chemical change?
A solution turning cloudy is evidence of a chemical change.
What are the three signs that a chemical change is occurring?
solid,liquid,or gas
What does evidence chemical change mean?
It means it has evedince to change
When a solution is heated and a gas is formed is that a chemical change?
If there is no chemical reaction occurring in the solution as a result of heating then this scenario constitutes a phase change.
What are advantage of chemical change?
The biggest advantage of chemical change is life. All organisms are alive because of the sum total of all the chemical reactions occurring in their cells.
Is freeze-drying a physical property or a chemical property?
i would think physical, unless there is a chemical change occurring..... :)
When you mix a pink powdered substance in water and mix it is that a chemical change?
Mixing is not itself a chemical change. There could be one occurring as a result, but nothing you described indicated any kind of chemical change.
