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Are atoms changed in chemical reactions according to Dalton's Atomic Theory?
Wiki User
∙ 12y ago
no, they either give up or gain or share electrons
Wiki User
∙ 12y ago
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Are enzymes permanently changed in the chemical reactions they aer involved in?
No, enzymes are not permanently changed in the chemical reactions they are involved in. Enzymes are catalysts that facilitate chemical reactions by lowering the activation energy, and they remain unchanged after the reaction takes place. They can be used repeatedly in multiple reactions.
The heat exchange in chemical reactions is due to a change in?
The chemical composition of reactants is changed.
Is it true that catalyst speed chemical reactions but are not changed by them?
Yes, it's true.
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.
Is enzymes protiene?
Enzymatic proteins are proteins, or enzymes, that speed up chemical reactions in the body. These reactions break apart biological molecules without being changed themselves.
Substances that are changed when they become involved in chemical reactions are?
Reactants are substances that are changed when they become involved in chemical reactions. Products are the new substances that are formed.
Substances that are changed when they become involved in chemical reactions are called?
Substances that are changed when they become involved in chemical reactions are called reactants. These reactants are changed into new substances that are called products.
Can gasses be changed?
Through chemical reactions, yes.
Are enzymes permanently changed in the chemical reactions they aer involved in?
No, enzymes are not permanently changed in the chemical reactions they are involved in. Enzymes are catalysts that facilitate chemical reactions by lowering the activation energy, and they remain unchanged after the reaction takes place. They can be used repeatedly in multiple reactions.
The heat exchange in chemical reactions is due to a change in?
The chemical composition of reactants is changed.
Are enzymes permanently changed in the chemical reactions they are involved in?
No. Enzymes are not permanently changed in the chemical reactions in which they are involved. After the reaction, they regain their original shape and are free to catalyze another of the same reaction.
What is chemical and physical reactions?
A physical reaction is were the current substance can be changed in state and then changed back easily to it's previous state, a chemical reaction is the opposite, it is difficult to change it back to its previous state.
Substances that are changed when they become involved in chemical reactions are called what?
Reactants
How can elements be changed into compounds?
Elements become compounds after chemical reactions.
Substances are changed into different substances when bonds break and form during?
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
What is the process in which substances are changed into different substances?
The processes are called chemical reactions.
Is it true that catalyst speed chemical reactions but are not changed by them?
Yes, it's true.
