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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 chemiluminiscence
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∙ 10y ago
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What is the chemical change that happens naturally in plants?
A chemical change that occurs naturally in plants is photosynthesis.
Is the burning of methane gas in a cooker a physical or chemical change?
Burning is a chemical change, an oxydation.
What happens to the particles of matter during a chemical change?
it will change to liquid
What Change occurs when One substances reacts with another substance?
A chemical change occurs when this happens.
Why do chemical reactions always involve a change in energy?
Chemical bonds always break in chemical reactions, causing changes in energy.
What always happens in a chemical change?
Color changes
What happens to chemical change during a chemical change?
when a chemical change occurs, chemical bonds are broken up
What happens when a chemical change occurs?
Chemical Change: A chemical change is when the product has changed completely to a new product.
How does chemical change happens in photosynthesis?
it happens when •A physical change is reversible, a chemical change is not.•the freezing of water would be a physical change because it can be reversed, whereas the burning of wood is a chemical change - you can't.
Does a change of state always occur in a chemical change?
not always, like the change is in the display without change in composition then it is change of state, other then will be chemical change
Does a chemical change happen when you curse?
No chemical change happens, though a consequential change probably will.
Are the clues that indicate a chemical change always reliable?
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 burning breakfast physical or chemical change?
Burning is always a chemical change.
What happens to the composition of matter when matter undergoes a chemical change?
A chemical change involve a change of composition.
What does a chemical change always do?
A chemical change always changes the chemical composition of the reactants to produce products with new and unique properties, different from the reactants.
What happens to a substance during a chemical change or chemical reaction?
substances can change to a solid, gas or liquid. solid - precipitate gas - fumes liquid - color change Either way, since its a chemical reaction, there always will be a change in the chemical composistion of a substance.
What happens with the sulfuric acid and is it a chemical change or physical change?
The chemical reactions of sulfuric acid are chemical changes.
