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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 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 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 with the sulfuric acid and is it a chemical change or physical change?
The chemical reactions of sulfuric acid are chemical changes.
