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Water Ch 2 Review And Atoms
Test Description: Review the special properties of water and atoms in general.
Instructions: Answer all questions to get your test result.
1) What is the ratio of hydrogen to oxygen in water?
A
2:1
B
5:2
C
1:2
D
4:3
2) When water molecules stick to themselves to form droplets we call it?
A
cohesion
B
high heat capacity
C
adhesion
D
capillary action
3) Water molecules are bipolar molecules which means that?
A
The oxygen end and hydrogen ends are slightly positive.
B
The oxygen has a slightly negative charge, while the hydrogens have a slightly positive charge.
C
Hydrogen ends are slightly negative while oxygen is slightly positive.
D
Oxygen and hydrogen ends are slightly negative.
4) Plants rely on what special property of water to get water from their roots to their leaves?
A
high heat capacity
B
adhesion
C
capillary action
D
cohesion
5) What two subatomic particles are found in the nucleus of an atom?
A
electrons and protons
B
electons and monomers
C
neutrons and electrons
D
protons and neutrons
6) What special property of water keeps it from heating too quickly?
A
cohesion
B
adhesion
C
high heat capacity
D
capillary action
7) How many valence electrons does carbon have?
A
4
B
3
C
5
D
2
8) What type of bond is it when electrons are transferred?
A
peptide
B
ionic
C
double
D
covalent
9) If sugar is dissolved in water, water is the _____?
A
solution
B
solute
C
mixture
D
solvent
10) Carbon dioxide is made of what elements?
A
nitrogen and carbon
B
carbon and hydrogen
C
carbon and oxygen
D
oxygen and calcium
*select an answer for all questions
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