1. Fall Final Review
Get a calculator, periodic table and scratch paper, let’s get ready to review.

2. Identify the Number of Sig Figs
6.022 x 10 23
Identify the Number of Sig Figs
0.0006
500
2080
2.50 x 10-3
1.010 x 105

3. Identify the Independent variable
116334
Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 of the microwaved mice were able to push the block away. 7 out of 10 of the non-microwaved mice were able to do the same.
Identify the Independent variable

4. Identify the Dependent Variable
microwaving
Bart believes that mice exposed to microwaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice in a microwave for 10 seconds. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 of the microwaved mice were able to push the block away. 7 out of 10 of the non-microwaved mice were able to do the same.
Identify the Dependent Variable

5. Strength of the mice
Where do significant digits come from?

6. What would be the mass of something with combination C N Y?
The Instrument
What would be the mass of something with combination C N Y?

7. Perform the conversion
222.90g
6 km = ______ m
Perform the conversion

8. 6000 m Classify the following as either a suspension or colloid
Oil and water

9. Suspension Substance Mixtures Element Compound Homogeneous
Heterogeneous
Will not settle
Suspension
Will settle
What category is missing?
Solution

10. Colloid
Which state of matter is missing?

11. Solid Tensile Strength Brittleness Hardness Elasticity Malleability
Which word means how much pulling a substance can take before breaking

12. Tensile Strength
A word that describes an object’s ability to sink or float.

13. Buoyancy
An object will always displace its own ______ when fully submerged. This type of measurement is called _______.

14. Volume, water displacement
A 30cm3 block of gold, weighing 5.67N is carefully submerged in a tank of mercury. One cm3 of mercury weighs 0.13N.
What is the buoyant force?

15. 4N
The weight of a rock suspended from a spring scale is 0.30N in air. If the rock is suspended in water the spring scale reading changes to 0.15N. What is the buoyant force acting on the rock?

16. 0.15N
Calculate the density if 13.65g of vegetable oil has a volume of 15.0mL

17. 0.910 g/mL
A measure of a material’s resistance to flow.

18. Viscosity
P1V1 = P2V2
V1 V2
T1 T2
A balloon holds 20L of helium at 283K. If the temperature doubles, and the pressure does not change, what will be the new volume of the balloon? =

19. 40L
P1V1 = P2V2
V1 V2
T1 T2 =
You pump 25.0L of air at atmospheric pressure, 101.3kPa, into a soccer ball that has a voume of 4.50L. What is the pressure inside of the soccer ball if the temperature does not change?

20. 563 kPa
Oxygen hogs the electron pair making it partially negative and Hydrogen end partially positive
This is called being ______.

21. Polar
An attraction between the oxygen of one water molecule and the hydrogen of another
Capillary action, high specific heat, adhesion, cohesion, surface tension
The above information is describing _____ .

22. Hydrogen Bonding Surface tension Adhesion Cohesion Capillary Action
High Specific heat
Sand being hotter than the water at the beach
This describes which water property

23. High Specific Heat Alkaline Slippery Produce more hydroxide ions
These are all characteristics of a ________.

24. Base
____________how quickly a solute will dissolve in a solvent

25. Dissolving Rate
What element is this?

26. Magnesium
Ion or neutral?

27. Ion
Everything to the left is a __________ .

28. Metal
Group 13 (3A)
How many valence electrons does this group have?

29. 3
Atom size ___________ going down a group.

30. Increase
What would the chemical formula be for a bond between Calcium and Chlorine

31. Calculate the molar mass for NaHCO3
CaCl2
Calculate the molar mass for NaHCO3

32. How many molecules are present in one mole?
84.01 g
How many molecules are present in one mole?

33. 6.02 x 1023
116334
Microwaving
Strength of mice
Instrument
222.90g
6000m
Suspension
Colloid
solid
Tensile strength
Buoyancy
Volume, water displacement 4N
0.15N
0.910 g/ml
Viscosity
40 L
563 kPa
Polar
Hydrogen bonding
High specific heat
Base
Dissolving rate
Magnesium
Ion
Metal 3
Increases
CaCl2
83.60g