the basic building block of matter
Atom
these are the connections that form between atoms
bond
An observable characteristic of a substance
Property
a characteristic or quality of an element
Property
anything that has mass and takes up space
Matter
What is the difference between an atom, molecule and element.
Atom is singular, molecule is two or more different atoms bonded together. Element is two or more of the same atoms bonded together
structure made up of smaller repeating units
extended structure
Two or more atoms joined together by chemical bonds
Molecule
List atleast 3 different type of physical properties
shape, size, color......
How much space and object takes up
Volume
List all three states of matter. Circle the one that has definite shape and definite volume.
Solid, Liquid and Gas
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.
Element
Using the table which samples are pure substances?
1 and 3
This type of model shows how much space each atom in a molecule takes up
Space filling model
Ice floats on liquid water. Explain why based on the molecular structure.
Explain the difference between a molecule and an extended structure
A molecule is just one unit where an extended structure is repeating molecules
A structure made up of smaller repeating units.
Extended structure
Explain what causes something to sink in water
An object sinks when its more dense than other
Which of the samples are mixtures?
1. Salt
2. Sugar
3. Lemonade
4. Water
3. Lemonade
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.
Explain how the properties of a substance relate to its structure
Solids whose atoms are arranged in a highly ordered, repeating pattern.
Crystal
Explain why a snow flake has 6 sides
the molecules form a hexagonal crystalline structure
Draw a ball and stick model for CO2
1 carbon bonded to two oxygen atoms