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8 questions
How many Hydrogen atoms does a single water molecule have?
1
2
3
4
What does "polar" mean?
A molecule is cold
A molecule has areas of positive and negative charge
This atom in a water molecule has more negative charge
hydrogen
oxygen
Our body and our cells contain an average of:
10% of water
50% of water
70% of water
100% of water
The 3 states of water result of a
chemical change
physical change
Select the good defenition for PHYSICAL CHANGE:
A CHEMICAL REACTION OCCURS & NEW PRODUCT ARE FORMED
MATTER CHANGE FORM BUT NOT CHEMICAL IDENTITY
Select the good definition for CHEMICAL CHANGE:
A CHEMICAL REACTION OCCURS & NEW PRODUCT ARE FORMED
MATTER CHANGE FORM BUT NOT CHEMICAL IDENTITY
Ice float on water because the ice is less dense than liquid water.
True
False
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