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1. releasing of heat 2. change of color 3. bubbling 4. change of smell 5. precipitation
Wiki User
∙ 13y ago
Wiki User
∙ 11y agochange in odor
formation of a precipitate
color change
temperature change
formation of a gas
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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 characteristics of chemical change?
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
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.
List 5 indications of a chemical change?
If an object has changed its chemical composition it has been through a chemical change. If you can't reverse what has been done in any way (things like burning, mixing, rusting) it's a chemical change
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)
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.
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.
How can a chemical reaction be observed?
Some indications may be: - release of a gas - formation of a precipitate - change of color - change of odor - change of pH - change of viscosity - change of the aspect - etc.
Which are 4 indications of chemical reaction has occurred?
The indicators of a chemical reaction are :- 1. Change in colour 2. Change in temperature 3. Evolution of a gas 4. Formation of a precipitate
What are the five indications of chemical reactions?
color change release gas release heat form a whole new substance precipitation
What are some clear indications that a chemical reaction took place when two or more chemicals are combined?
Formation of a solid, formation of a gas, usually, but not always, change in temperature. Change in properties of the reactants.
What 5 clues when considering a physical change?
5 clues of a chemical change
What are 5 key words in a chemical change?
These are: reaction, chemical formula, reactant, product, chemical equation.
A change in color is evidence of a change?
yes **Why? I need more than just yes. Tell why.** ok ok ok its not always a sign that there is a reaction but in most cases it will be. things that show a reaction are temperature change (usually increase but not always) mass change, state change or physical change. hope this helps
What information is given by the group number of an element?
Indications about the general chemical properties of this element.
