1. Water Basics
Physical
Properties
Properties2
Structure
of Water
Bonding and
Reactions
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
FINAL QUESTIONS

2. Water Basics -100 Answer: Hydrogen and oxygen
Question: What two elements make up water?
Answer: Hydrogen and oxygen

3. Answer: Group 1, Period 1 (Hydrogen)
Water Basics - 200
Question: Where are the elements that make up
water located on the periodic table?
Answer: Group 1, Period 1 (Hydrogen)
Group 16, Period 2 (Oxygen)

4. Question: Water makes up what percent of the
Water Basics - 300
Question: Water makes up what percent of the
Earth’s surface?
Answer: 75%

5. Water Basics - 400 Answer: 60- 70%
Question: What percent of the human body is
made up of water?
Answer: %

6. Water Basics- 500 Answer: nonmetal
Question: Both elements that make up water
would be classified as what on the periodic
table?
Answer: nonmetal

7. Physical Properties - 100
Question: Boiling point is a physical property
of water. What is the boiling point for water?
Answer: 100oC

8. Physical Properties - 200 Question: 0oC is a physical property of
water. Which property is it?
Answer: Freezing/melting point of water

9. Physical Properties - 300
Question: When an oil spill occurs on the ocean. The oil does not sink into the ocean nor does it mix with the water. What property of water is this due to?
Answer: Density. Oil is less dense than water.

10. Physical Properties - 400
Question: A paper clip, and needle can float on
water. You can add numerous pennies to an apparent full glass of water without it overflowing. A water strider can “walk” across the
water. What property of water is this due to?
Answer: Surface tension

11. Physical Properties - 500
Question: When you touched the flaming snowball, you had to wet your
hands in water. What property of water
enabled you to touch the flame without getting burned?
Answer: Specific heat (Water has a high specific heat.
This means more heat energy is required to increase
the temperature of water than something with low specific heat capacity.) .

12. Properties2 - 100 Question: When water is in the form of steam,
Question: When water is in the form of steam,
what state of matter is it in?
Answer: gas

13. Properties2 - 200 Question: When we took water and separated
Question: When we took water and separated
it into hydrogen and oxygen and used
the hydrogen gas to power our boat/cars
what was that process called?
Answer: electrolysis (a chemical property of
water)

14. Properties2 - 300 Question: The Statue of Liberty is made of
Question: The Statue of Liberty is made of
the element copper. But instead of having
the color of a penny (also made of copper), it
is the color green. What chemical property of
water caused this?
Answer: Oxidation

15. Properties2 - 400 Question: Solubility is the ability to dissolve
Question: Solubility is the ability to dissolve
solutes in a solvent at a given temperature.
When you add sugar to water and mix it
together, which is the solute and which is the
solvent?
Answer: Sugar: Solute (element/Compound
that is dissolved in a solvent)
Water: Solvent (part of solution that dissolves
other solutes)

16. Properties2 - 500 Question: Is salt water an example of a
heterogeneous mixture or a homogenous
Mixture? Why?
Answer: A homogenous mixture.
A heterogeneous mixture has different layers while a homogeneous mixture looks the same throughout
(which is what salt water does).

17. Structure of Water- 100 Question: What is the chemical formula for
Question: What is the chemical formula for
water?
Answer: H20

18. Structure of Water - 200 Question: How many protons, neutrons and
Question: How many protons, neutrons and
electrons does ONE molecule of water have?
Answer: Hydrogen: P:1 N:0 E: 1 (Water has two of these)
Oxygen: P: 8 N:8 E: 8
Thus, H20 would have P: 10 N:8 E:10

19. Structure of Water - 300 Question: What is the Bohr diagram for each
Question: What is the Bohr diagram for each
element that makes up water?
Answer: Oxygen: Number of Energy Levels: 2 First Energy Level: 2 Second Energy Level: 6
Hydrogen: Number of Energy Levels: 1
First Energy Level: 1

20. Structure of Water - 400 Question: What is the Lewis dot structure
Question: What is the Lewis dot structure
for water?
Answer:

21. Structure of Water - 500 Question: When you draw the Lewis dot
structure for water, what is the name of the
electrons you include?
Answer: valence electrons

22. Bonding and Reactions - 100
Question: Why is water not an ionic bond?
Answer: Because water shares electrons
instead of stealing them = H+1 + O-2 = H2O

23. Bonding and Reactions - 200
Question: What kind of bond does water
have?
Answer: covalent bond (sharing of electrons)

24. Bonding and Reactions - 300
Question: What type of reaction did you see
in class when ethanol and calcium acetate
were combined together to make the flaming
snowball (combustion/ energy is being released)?
Answer: EXOTHERMIC (Exothermic reactions release energy in the form of heat, light or sound.
Exothermic reactions may produce heat or be explosive.

25. Bonding and Reactions - 400
Question: When photosynthesis
happens, what type of reaction occurs ?
(energy is being absorbed)
Answer: Photosynthesis is an example
of an endothermic chemical reaction.
In this process, plants use the energy
from the sun to convert carbon dioxide and
water into glucose and oxygen. This reaction
requires 15MJ of energy (sunlight) for every kilogram
of glucose that is produced:
sunlight + 6CO2(g) + H2O(l) = C6H12O6(aq) + 6O2(g)

26. Bonding and Reactions- 500
Question: Water can be used to increase the rate of a reaction. What is it called when you add something to a reaction to cause the reaction rate to increase?
Answer: A catalyst. (A catalyst is a compound that speeds chemical reactions without being consumed. Water is used as a catalyst in
explosives. Detonations of high explosives made up of oxygen and hydrogen produce water at thousands of degrees Kelvin and up to 100,000 atmospheres of pressure, similar to conditions in the interiors of giant planets.)

27. FINAL QUESTIONS…AKA.. Pop Quiz
Please record your answer on your own sheet of paper and turn it into me when you are finished. (Yes, this will be a quiz grade! I hope you were paying attention during the review!)
List 4 physical properties of water and one chemical property of water. (You may list all 10 properties of water for extra credit.)
Explain the difference between a endothermic reaction and an exothermic reaction. Is a exploding firework a endothermic reaction or exothermic reaction? (For extra credit you can list an example of each type of reaction from our review or from your own background knowledge.)
Write the chemical formula for water and draw the Lewis dot structure for water.
4. What states of matter can water exist in?