Dimensional Doom
What are the base metric units we use for time, mass, temperature, volume, length.
What is the exponent we use for our base units?
1x10?
1. Sec, Grams, K or 0C, Liter, Meter
2. 0
What is Matter?
2 Specific parts
Anything that has mass and takes up space
You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density?
3 g/cm3
In our Lab (Separating Mixtures) what was a homogenous mixture that we used.
Saltwater
Is Diatomic Hydrogen (H2) a Compound or an Element?
Is it a pure substance?
1. Element
2. YES!
Convert 3598 grams into pounds
1 lb = 454 g
7.93 lb
What are the different phase states of matter?
and tell me whether each phase state has definite or indefinite volume and definite or indefinite shape.
Solid, Liquid, Gas, Plasma
DS/DV, IS/DV, IS/IV, IS/IV
The density of an object is 4.3 g/ml. The mass of the same object is 33.2 g. What is the volume of the object in ml to the nearest hundredth?
7.72ml
Fe oxidizes to form Fe2O3 What has my Fe undergone? Yes we know it has oxidized but what is oxidation?
A chemical change!!!!
I am trying to make myself some Moonshine. I need to separate the ethanol from the water; they're both liquids. How would I do this?
Distillation
A distance is 17 Yards, what is that distance in millimeters?
1yd= 3 ft
1 ft= 12 in
1in=2.54cm
15,544.8mm
If I fill a tire up with air, what is happening at the molecular level that is making the tire inflate. Think about the properties of gases. What is happening that keeps the tire inflated?
Gases fill their containers so the more air we put into the tire the more molecules of air that are hitting the inside of the tire.
The length of one side of a cube is 3 centimeters. The density of the cube is 1.5 g/ml. What is the mass of the cube?
UNITS COUNT
40.5g
Name three methods of physical separation that we used in our lab to separate the sand, salt and iron fillings from each other?
Decanting, Filtration, Evaporation, Magnetism
I'm doing a fun, cute interactive lab with my bff's and my experimental value of the object that I weighed is 13.24g. The actual value of the object is 24.65g. what is my percent error to the nearest tenths place?
46.3% error
A box measures 3.12 ft in length, 0.0455 yd in width and 7.87 inches in height. What is its volume in cubic centimeters?
1 inch = 2.54 cm exactly
1 foot = 12 in
1 yard = 3 ft
7,903cm3
Name all 6 phase changes not including plasma.
Solid, Liquid, Gas
Melting, Vaporization, Freezing, Sublimation, Condensation, Deposition
The length of a cylinder is 25 cm. The diameter of that same cylinder is 15 cm. The cylinder has a mass of 150g. What is the Density of the cylinder in milliliters?
.03397g/cm3
Explain to me the relationship between elements, compounds and pure substances. Yes we know that elements and compounds are pure substances silly goose but what the heck does it mean to be a pure substance???
Pure substances cannot be broken apart by physical means. Only through a chemical reaction can we break apart the bonds of a compound.
Mr. Reck is the best teacher on earth and I want to do a fantastic job in my lab to impress him. I recorded the mass of my iron and got a mass of 24g. Mr. Reck said the actual value of the Fe is 55g. Find the % error to the nearest tenths place and determine if it would be necessary to look back over that section?
56.3% error
YES 50% or higher and you're retired
How many seconds are there in a year (:
1 Min= 60 seconds
1 Year= 365.25 Days
1 Hour= 60 min
1 Day= 24 hours
31,557,565 sec
The movement of particles can tell us much about the matter that we are dealing with. Explain to me using your vast knowledge of chemistry how these particle movements differ between the different phases of matter.
Particles have fixed arrangement, particles in liquids move faster, particles in gases move rapidly.
The length of a log is 4 meters, the diameter of the log is 1.3 meters. It is a perfectly cylindrical log. The density of the log is 1.5 g/ml. What is the mass of the log in grams?
7,959,900g
1. Copper Boils at 2567 0C:
2. Copper metal dissolves in hot concentrated sulphuric acid to form solutions containing the aquated Cu(II) ion together with hydrogen gas, H2.
3. You split a uranium atom in two through fission and you make a big BOOM!
4. The melting point of Uranium is 1132 oC
5. I take an axe to a log to split the wood
Answer all 5
Hint: Chemical/Physical Properties
Chemical/ Physical Change
1. Physical Property
2. Chemical Property
3. Chemical Change
4. Physical Property
5. Physical Change
Plasma the 4th state of matter also goes through phase changes. To get a gas to a plasma what is the phase change that must occur? To get a plasma to a gas, what is the phase change that must occur?
2 answers
Ionization, Deionization