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Chemical Reactions
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The total number of atoms does not change in a chemical reaction
True
The total number of atoms stays the same in a chemical change
True
In a chemical reaction, the number of atoms remains the same before & after the reaction
True
In a chemical reaction, the number of atoms does not change but a new ... is formed
Substance
Did the number of atoms in oxygen (O2) change during chemical reaction?
No
Did the number of atoms in iron (Fe) change during chemical reaction?
No
Was iron oxide formed?
Yes
in the chemical reaction, what happened?
The oxygen atoms were rearranged
Is burning steel, Fe + O2 ?
Yes
in a chemical change , the chemicals we start with are ...
Reactants
In a chemical change, the products you form are ...
Products
After a chemical change, does it have new properties?
Yes
A chemical reaction ...
forms a new substance
Whay caused the steel wool to burn?
A battery
What burned in the video?
Steel wool
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