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During a chemical change the structure of molecules (as chemical composition) is changed.
Signs of chemical reactions may be:
- Gas release
- Formation of a precipitate
- Change of color
- Change of odor
- Change of pH
- Change of aspect
- Change of viscosity
- Change of the temperature
- Visible formation of new compounds
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoScent, New Substance is formed, Colour Change, Temperature, Light.
Wiki User
∙ 12y agoA chemical change can be shown by a permanent color change, Endothermic or Exothermic meaning taking in or giving away heat
Wiki User
∙ 13y agoheat, substances,Energy
Wiki User
∙ 11y ago7 chickens
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What is an ability of a material to change its chemical makeup?
Chemical property
A change in which one or more substances combine or break apart to form new substances?
chemical change
What are the 5 indications of a chemical change?
1. releasing of heat 2. change of color 3. bubbling 4. change of smell 5. precipitation
Which change forms a new substance?
The change were new material is produce is called chemical change.
Is giving off light a physical or chemical change?
I would think it to be a Physical Change. Not chemical.
What is the differences between chemical and physical change?
A chemical change involves a change in a substance's chemical properties (characteristics that describe how it interacts with other substances).A physical change involves a change in a substance's physical properties(characteristics that describe certain features one can see with their 5 senses).
What are the characteristics of a chemical reaction with example?
5characteristics of chemical reaction 1, evolution of gas 2,formation of precipitate 3,change in temperature 4,change in colour 5,change in state
What are some characteristics of chemical change?
A characteristic of a chemical change is a change in odor. Another characteristic is a change in the temperature. Another characteristic is the creation of a precipitate. Those are just some characteristics.
What are some characteristics of a chemical change?
A characteristic of a chemical change is a change in odor. Another characteristic is a change in the temperature. Another characteristic is the creation of a precipitate. Those are just some characteristics.
Is sand and dirt mixed a chemical or physical characteristics?
it is a physical change
When do you say that a change is chemical?
A chemical change has occurred when a new substance is formed. Characteristics of this include a color change, precipitate is formed or it bubbles meaning a gas has formed.
Is putting color to icing chemical or physical change?
Coloring causes only a physical change to icing because it does not alter the chemical characteristics of the icing.
What clues can you use to identify a chemical change?
Characteristics of a chemical change can include a temperature change, a color change, the production of bubbles, the production of a precipitate, and a smell.
What are characteristics do all chemical changes have?
All chemical reactions cause the change of color and the Change in temperature. Chemical reactions also have the characteristic of releasing gas.
What 5 clues when considering a physical change?
5 clues of a chemical change
How would you determine if a chemical change had occurred?
Some characteristics of a chemical change are: - change of smell - change of color - release of gases - change of temperature - formation of a precipitate - change of the aspect - change of pH in solutions - change of viscosity - flames or explosion etc.
What are some Chemical reactions with more than 1 characteristics in common?
One example is- H2 + o2 + heat = h2o It is showing 2 characteristics, change in temperature and change in state
