0
Depends on the gas.
Producing acetylene (a gas used in welding) is a chemical change; producing steam (a gas used for many industrial purposes, as well as building heat) is a physical change.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoYes, that is often an indicator of a chemical change. A gas that wasn't there before usually means that you've produced a gaseous element or compound that's a rearrangement of the atoms of the reactant(s).
Wiki User
∙ 11y agoyes it is co2 also known as carbon dioxide. The gas bubbles or smoke in the air is a sign off carbon dioxide being given off.
Add your answer:
Earn +20 pts
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.
Is a potential sign of chemical change a release in gas?
No. If a gas is dissolved under pressure, in a liquid then reducing the pressure will result in the release of a gas. This is what happens when you open a bottle or can of a carbonated soft drink.
A change in color when two solutions are mixed together is a clue that what has taken place?
A change in the color of a solution is a sign thatthere is a chemical change happening. A chemical change happens when two substances combine forming another substance. It can also happen when two or more substances decompose.
What does fizzing mean in a chemical reaction?
It is a sign that a chemical change is taking place, rather than a physical change.
Is production of gas a potential sign of chemical change?
The release of a gas can be a sign for a chemical reaction.
What of the following is not a potential sign of chemical change?
I wish I knew my dood
What is a sign that a chemical change has occurred smoke broken pieces change in shape or change in state?
The production of smoke from something burning would be a sign of a chemical change. Broken pieces, change in shape, or change in state are all physical changes.
Is the evaporation of water a potential sign of a chemical change?
No, evaporation causes a change in the state of matter (liquid to solid) which is a physical change
Is changing of color a sign of chemical change?
The change of color may be a sign of a chemical reaction.
What are some following potential sign of chemical change?
Some signs are: change of the color, release of a gas, change of the temperature, formation of a precipitate, pH modification, viscosity variation, a change of the odor or taste, etc.
What is one sign of a chemical change?
Change of color
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.
Why is paper burning a chemical reaction?
Burning is a sign of a chemical change
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.
