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Matter
Measurement
Density
Scientific Notation
Sig Figs
100
What is Matter?
Anything that takes up space and has mass
100
What are the proper measuring units for the following: Mass Volume Length
Mass: grams (g) Volume: Liters (L), centimeters cubed (cm^3), cubic centimeters (cc) Length: meters (m)
100
What is the formula for density?
m D = -------- V
100
What is the difference between scientific notation and standard notation of numbers?
scientific notation is just a short way of writing a long number; standard form is just the number written out
100
What is the first rule of significant figures?
All non-zero digits are significant
200
There are six (6) different types of matter. What are the five (5) you are required to know?
1.) Solid 2.) Liquid 3.) Gas 4.) Vapor 5.) Plasma
200
When reading a graduated cylinder, you must read the ____1____ of the _____2____.
1. Bottom 2. Meniscus
200
Why do objects float or sink?
Objects float or sink because they are more dense (sink) or less dense (float) than the liquid they are in. They do not float or sink because they are heavy or light.
200
Write the following in scientific notation: 230 L 0.089 g -0.0076 m
2.3 x 10 ^ 2 L 8.9 x 10 ^ -2 g -7.6 x 10 ^ -3 m
200
When are zeros significant?
When there is a zero between two non-zero numbers and when they are trailing and there is a decimal point.
300
Define the following: Substances Chemical Change Mixture Viscosity
Substances: Products that can be broken down by chemical methods Chemical Change: A change where a new form of matter is formed Mixture: Made up of two or more different substances. There are homogenous and heterogenous mixtures. Viscosity: Physical properties of liquids that describe how they flow
300
What is a proper measuring tool to measure mass?
Triple beam balance.
300
What does it mean to be buoyant?
Buoyancy means that the object in question has the same if not a very similar density as the liquid it is in.
300
Write the following in standard notation: 3.35 x 10 ^ -1 kg -3.75 x 10 ^ -2 mg 1 x 10 ^ 4m
0.335 kg -0.0375 mg 10000 m
300
How many significant figures are there in the following: 1.) 320001 2.)1.0000 3.) 700000
1.) 6 2.) 5 3.) 1
400
What is the difference between sublimation and deposition?
Sublimation is when there is a direct phase change from a solid to a gas. Deposition is when there is a direct phase change from a gas to a solid.
400
When reading a triple beam balance, how do you calculate the total mass?
You add up the different amounts on the rider beams.
400
What is the mass of a 15 cm cube of iron if the density of iron is 7.87 g/cm³?
26561 g
400
What is the speed of light in a vacuum, 299 792 458 m/s, in scientific notation.
3.0 x 10 ^ 8
400
246.24 + 238.278 + 98.3 =
582.8
500
What are the differences between the following properties: Extensive Intensive Physical Chemical
Extensive: Depends on the amount of matter Intensive: Depends only on the type of matter Physical: A property that can be observed and measured without changing the substance Chemical: A property that can only be observed by changing the type of substance
500
What is water displacement? How do you measure water displacement? What does this measurement mean?
Water displacement is the quantity of water displaced when a floating body is added to the vessel. You measure displacement by subtracting the final amount of water (after you add your object) from the starting amount of water (before you add your object). This measurement gives you the volume of the object in mL.
500
What is the mass of a 450 cm³ block of silicon if the density of silicon is 2.336 g/cm³ using significant figures.
1.1 x 10 ^ 3 g
500
What is the radius of an argon atom, 0.000 000 000 098 m in scientific notation?
9.8 x 10 ^11
500
43.678 x 64.1=
2.80 x 10 ^ 3