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WorksheetsChemical Reactions
Total questions: 10
Worksheet time: 10mins
Why is sample 1 different from sample 2?
The type of atom
Sample 2 has 1 more oxygen
Sample 1 has 1 more oxygen
Sample 3 has 1 more oxygen
Given question 1, would sample 1 and sample 2 have different properties?
Yes, because they are different substances
Yes, because they have different numbers of atoms
Yes, because they have different types of atoms
I don't know
What predictions can you make about the number of atoms in sample 2 in comparison to sample 1?
They will have the same type and number of atoms
They will have the same type but different numbers of atoms
They will have different types and numbers of atoms
They will be the same molecule
Given question 3, are the molecules the same or different?
Same
Different
How are new substances made?
Through physical reactions
Through osmosis
Through synthesis
Through chemical reactions
Which term describes the atoms or molecules that are present prior to a chemical reaction?
Products
Decadents
Reactants
Surfactants
Which term describes the atoms or molecules that are present after a chemical reaction has occurred?
Products
Decadents
Reactants
Surfactants
What would you see if a chemical reaction occurred?
Change in color
Change in state
Change in smell
A new molecule produced
Given the model about the reddish-brown substance, did a chemical reaction occur?
Yes
No
Given question 9, what conclusions can you make about Iron Oxide?
It has Iron in it
It is not completely like the pipe substance
It is the same as the pipe substance
It is the same as the fertilizer
