Fall Final Review Get a calculator periodic table

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

6. 022 x 10 23 Identify the Number of Sig Figs 0. 0006 5000. 00 2080 2. 50 x 10 -3 1. 010 x 105

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 nonmicrowaved mice were able to do the same. Identify the Independent 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

Strength of the mice Where do significant digits come from?

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

222. 90 g 6 km = ______ m Perform the conversion

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

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

Colloid Which state of matter is missing?

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

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

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

Volume, water displacement A 30 cm 3 block of gold, weighing 5. 67 N is carefully submerged in a tank of mercury. One cm 3 of mercury weighs 0. 13 N. What is the buoyant force?

4 N The weight of a rock suspended from a spring scale is 0. 30 N in air. If the rock is suspended in water the spring scale reading changes to 0. 15 N. What is the buoyant force acting on the rock?

0. 15 N Calculate the density if 13. 65 g of vegetable oil has a volume of 15. 0 m. L

0. 910 g/m. L A measure of a material’s resistance to flow.

Viscosity P 1 V 1 = P 2 V 2 V 1 = V 2 T 1 T 2 A balloon holds 20 L of helium at 283 K. If the temperature doubles, and the pressure does not change, what will be the new volume of the balloon?

40 L P 1 V 1 = P 2 V 2 V 1 T 1 = V 2 T 2 You pump 25. 0 L of air at atmospheric pressure, 101. 3 k. Pa, into a soccer ball that has a voume of 4. 50 L. What is the pressure inside of the soccer ball if the temperature does not change?

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

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 _____.

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

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

Base ______how quickly a solute will dissolve in a solvent

Dissolving Rate What element is this?

Magnesium Ion or neutral?

Ion Everything to the left is a _____.

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

3 Atom size ______ going down a group.

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

Ca. Cl 2 Calculate the molar mass for Na. HCO 3

84. 01 g How many molecules are present in one mole?

6. 02 x 1023 116334 Microwaving Strength of mice Instrument 222. 90 g 6000 m Suspension Colloid solid Tensile strength Buoyancy Volume, water displacement 4 N 0. 15 N 0. 910 g/ml Viscosity 40 L 563 k. Pa Polar Hydrogen bonding High specific heat Base Dissolving rate Magnesium Ion Metal 3 Increases Ca. Cl 2 83. 60 g