Structure of Matter
Modeling Matter
Density
Properties
Misc
100
the basic building block of matter
Atom
100
these are the connections that form between atoms
bond
100
what is the formula for denisty?
Mass / Volume = Density
100
a characteristic or quality of an element
Property
100
anything that has mass and takes up space
Matter
200
I am two or more atoms chemically bonded.
Molecule
200
structure made up of smaller repeating units
extended structure
200
Find the density of an object with a mass of 100g and 20 cubic centimeters. (Units Matter)
5g/cm3
200
List atleast 3 different type of physical properties
shape, size, color......
200
How much space and object takes up
Volume
300
List all three states of matter. Circle the one that has definite shape and definite volume.
Solid, Liquid and Gas
300
Explain the difference between the "ball and stick" model and the "space filling" model
Ball and stick shows the bonds and their angles while the space filling does not.
300
Find the density of an object with a volume of 10 mL and a mass of 200g. (Units Matter)
20 g/mL
300
Using the table which samples are pure substances?
1 and 3
300
What is the purpose of the "Space Filling" Model
Shows how much space a molecule make up
400
Ice floats on liquid water. Explain why based on the molecular structure.
The molecules in ice are more spread apart than in liquid water.
400
Explain the difference between a molecule and an extended structure
A molecule is just one unit where an extended structure is repeating molecules
400
An object has a mass of 55kg and takes up 6 cubic meters of space. Find the density (Units Matter)
9.17 kg/m3
400
Explain what causes something to sink in water
An object sinks when its more dense than other
400
Which of the samples are mixtures?
2 and 4
500
Graphite atoms are arranged in sheets while diamonds form a compact crystal. Explain why we use graphite for something like writing with a pencil and not diamond.
Graphite atoms will break apart more easily than diamond will.
500
Explain how the properties of a substance relate to its structure
the structure of the molecules help determine the properties (shape, hardness, solubility)
500
The density of copper is 8.94 g/cm3. This piece of copper has a mass of 143 grams. What is its volume? (Units Matter)
16cm3
500
Explain why a snow flake has 6 sides
the molecules form a hexagonal crystalline structure
500
Draw a ball and stick model for CO2
1 carbon bonded to two oxygen atoms