Does it matter?
Light - is it matter?
No! Light is not matter
Fe
Iron
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
Does this show a Physical Change or a Chemical Change?
Chemical Change
Gases are a ____ of matter
State or Phase (Either works)
NaHCO3
How many different elements are in this compound?
4 (Na, H, C, O)
NaHCO3
A Lightbulb - is it matter?
Yes! It has mass and volume, so it is matter!
Na
Sodium
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
Which side of the arrow contains the reactants?
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
Left side of the arrow
Gases are like liquids because they change what to fit their container?
Shape (NOT Volume - liquids don't change the amount of space they take up)
What do we call the energy of motion?
Kinetic Energy
Air - is it matter?
Yes! Air has mass (weighing the balloon) and takes up volume (pushing on the syringe plunger) - so it is matter!
Double Jeopardy! What are you wagering?
List 3 Alkaline Earth Metals. Here is a periodic table:
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
Which side of the arrow contains the products?
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
The Right side of the arrow
Double Jeopardy! What's your wager?
This is caused by gas particles colliding with things:
NaHCO3
How many atoms are in this compound?
6
Heat - is it matter?
No! There is no "heat particle" - things with matter have a temperature, but the heat itself doesn't have any mass!
P
Phosphorous
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
How many products are there in this reaction?
3
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
As the temperature increases, what happens to the volume of a gas?
It also increases!
Is Al a metal, metalloid, or nonmetal?
Metal! It's the one we "kick out" of the metalloid staircase!
What two things does something have to have for it to be an example of matter?
(You must have both to get the point!)
Mass and Volume
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
How many atoms of Hydrogen are there on the reactant side AND the product side of the reaction?
NaHCO3 + HC2H3O2 → NaC2H3O2 + H2O + CO2
5 and 5 (SAME AMOUNT!)
As the volume of a gas's container is decreased, what happens to the pressure that gas is exerting on the walls of the container? What happens to the collisions?
(You must have both right for the points!)
The pressure increases, and more collisions happen because there is less space they have to travel to collide with the walls and each other.
In which object do the particles have the highest kinetic energy?
A piece of ice at -29*C, a piece of iron at -8*C, or a piece of granite at -72*C?
The piece of iron at -8*C because temperature is a measure of the AVERAGE kinetic energy of a sample.