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WorksheetsLOCOM
Total questions: 21
Worksheet time: 14mins
Can Matter be created?
Yes
No
None of the above
I don't know
Label the states of matter
Solid
Liquid
Gas
If Maya puts a bowl of frozen water into the freezer and it weighs how much do you think it will weigh when we take it back out?
200g
50g
120g
0g
The Number besides 2Na is called what?
(a)
Which one of these chemical equations supports the law of conservation of mass?
P4+5O2----->P4O10
Na2SO4---->CH4
3NO----->N2+202
4AI+3O2---->2Al2O6
which is not apart of the states of matter
Solid
Liquid
Gas
Plasma
Air
what are some physical changes
Melting Point
Chopping
Boiling Point
Corrosion
Is Food digesting a physical change?
yes
no
Which is not a chemical change
Flammability
Rotting apple
Rusting
Cutting paper
Which is NOT a physical change
Boiling Point
Melting point
chopping wood
acid
what is a physical change
A physical change is when the change in the physical property not in the substance itself
A substance that can form a new substance
What is a chemical change
If Jane takes a glass of water of the scale and pours some sugar into the water and puts it back on the scale what happens to the mass of the water
It stays the same
it changes
what direction will the pointer move if the 500 gram block was removed from the scale?
It would be equal
Go to the right
Go left
nothing
What happens if we instead removed the 200 gram block instead of the 500 gram block where would it point to?
Left
Right
Stay the same
Nothing
which shows the law of conservation
2SnO2+4H2->2Sn+4H2O
C2H6+2O2->NO+H2O
NH3+2O2->H2O+2CO2
2Al+4HCL->3H2+2AlCl3
What is the little number by 2Na3
(a)
All mass has to be the (a) ?
Exothermic reactions are reactions which (a) energy.
Endothermic reactions are reactions which (a) enegy.
Can you have more than one subscript?
Yes
No
