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