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Catalysts accelerate chemical reaction. Enzymes are examples of catalysts that speed up reactions in the body.
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Are chemical reactions a chemical change of original substances before a chemical reaction takes a place?
Substances are changed only after the beginning of a chemical reaction.
What is a key feature of a chemical change?
Any change that changes the atomic and molecular composition and structure of the substances involved. Mostly it is a physical change that cannot be reversed.
What name do we give reactions that we cant get original substances back?
Those are chemical reactions.
What happens to the substances involved in a chemical change?
Several different outcomes can occur to reacting substances in chemical reactions. An atom will typically either lose or gain electrons, which will make it negatively or positively charged.
What chemical change may be used to break down a compound?
Lysosomes have a chemical that breaks down foreign objects and substances.
This is a process in which substances change into new substances with different properties?
Chemical Change
What is the process in which substances change into new substances with different properties?
chemical reactions
A process in which substances change into new substances with different properties is a?
Chemical reactions.
Blank Are the substances that speed up chemical reactions in the body?
Enzymes
How can you change the speed of a reaction?
Temperature can change the speed of some reactions.
What are the different reactions of substances when met with heat?
Their molecules speed up and change from a solid to a liquid to a gas. If it combusts the products are always a CO2 and H2O.
Is speed the rate of change?
NO! It is the rate of reactions!
What is the substances that speed up chemical reactions?
An enzyme/catalyst
What is the name for the substances that speed up digestion?
Anything, in the digestive system or in other systems, that speed up reactions are called enzymes.
What is the classification of chemical reactions?
When one substance or combination of substances undergo change to become another substance or substances
What is a substance that undergoes a change in a chemical reactions?
These substances are called reactants.
What is bio-catalist?
Catalysts are substances that speed up the rate of a reaction without changing itself. Biological catalysts are substances that speed up biological/metabolic reactions. One example of biological catalyst is enzyme.
