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During a chemical reaction, mass is conserved. This is:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
Breaking glass is a:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
When a gas is released from a chemical reaction:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
Signs on the occurrence of chemical reactions are:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
Chemical change is:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
Photosynthesis is a:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
Physical change is:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
The action of vinegar on chalk is a:
The change in the identity of a substance.
Lavoisier’s Law.
The total mass of reactants is equal to that of the products.
Chemical Change.
Physical Change.
The change in shape (form), size and state of a substance without modification in the identity of a substance.
Chemical Change.
All of the above.
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