0
Why is the appearance of a gas not always a sign of a chemical change?
Wiki User
∙ 13y ago
becauze some gases are liguids and some are natural carbine gas if thiz dosnet answer your qustion visit thiz website www. wikipeadia.com and search dat
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
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
When a flower goes brown is it a chemical or physical change?
The browning of a flower is a chemical change. Color changes are one sign of a chemical reaction.
Is baking soda mixed iodine solution a chemical change?
Chemical, When something changes in color, it is a sign of a chemical change.
What is the most likely sign that a chemical change has happened?
Two liquids are mixed at room temperature and a gas forms.
Is the toasting of bread a physical or chemical change?
This is a physical change and might include a chemical change due to the heat involved in taking the bread to its final appearance. the physical change because, there is a change in color(colour) and a slight change in shape depending on the toaster you are using.
Is a common sign that a chemical change has occurred?
A change in pH or conductivity will always hint to a chemical change. Also less technical signs can be a change in volume or color
Is boiling always a sign of a chemical reaction?
No, boiling is not always a sign of a chemical reaction.
What is a sign that chemical change has occurred?
Some indicators of a chemical reaction are:- change of color- change of odor- release of a gas- change of the temperature- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion- possible chemiluminescence -formation of new compounds
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical reaction.
What is good sign that a chemical change has occurred?
Some indicators of a chemical reaction are:- change of color- change of odor- release of a gas- change of the temperature- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion- possible chemiluminescence -formation of new compounds
What is one sign of a chemical change?
Change of color
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
Is production of gas a potential sign of chemical change?
The release of a gas can be a sign for a chemical reaction.
Is copper and silver a chemical or physical change?
It is a chemical change because it leaves a residue (which is a sign of chemical change) Hope that helps
How is rotting a chemical change?
garbage rotting is a chemical change because the odour becomes different which is considered a sign of chemical change.
When is a phase change and when is it a sign of a chemical change?
After a physical change the molecule remain intact.After a chemical change the molecule is modified.
How chemical change that garbage undergoes?
garbage rotting is a chemical change because the odour becomes different which is considered a sign of chemical change.
