Mass, volume and Matter
What is the difference between Mass and Weight?
Whereas mass measures the amount of matter in an object, weight measures the force of gravity acting on an object.
The energy in a system before acted upon. A ball at the top of a hill has potential energy.
Who created the Periodic Table?
Mendeleev
N
draw on table
Oxygen
Neutrons-8
Electrons-8
How many states of matter are there?
4
plasma, solid, liquid, gas
What is a reactant?
The instigator of a reaction.
Elements in groups share:
O
oxygen
Na
protons-11
neutrons-12
electrons-11
Give an example explaining the difference between weight and mass
the moon vs earth example
Describe physical change. Give an example
The object physically properties change but not chemically, like ice melting
Give an example of a metal.
Describe it's characteristics (2)
Many examples
-shiny luster
-good conductors of heat and electricity
-easily bent
-Mostly solids at room temperature
Na
Sodium
C
Carbon
6
6
6
Give characteristics of either gas, liquid or solid
gas: no definite shape or volume
solid: definite shape and volume
liquid: definite volume but not shape
What is kinetic energy?
something that is in motion stays in motion
A covalent bond is between two nonmetals. An ionic bond is a type of bond formed by electrostatic attraction. They are SHARED electrons.
F
Flourine
What is more electronegative? F or C?
F=4.0 stronger
Give an example of plasma, AND what is it's characteristics?
Law of conservation of energy?
energy is neither created nor destroyed
Give the definition of an ionic bond
An ionic bond is a bond between a metal and a non metal. A positive and a negative ion. The electrons are NOT shared.
C-14
Carbon-14
protons-6
electrons-6
neutrons-8
Create a lewis dot structure of H2O
Draw on board.