Phys or Chem
A reversible change
Physical
What is the slowest moving state?
Solid
What is the other name for the Nuclear Force?
Strong Force
What subatomic particle has a charge of 0?
Neutron
Sandpaper is rough and red.
Qualitative
Rough and Red are qualities!
A change that forms a new substance
Chemical
What state does plasma most closely resemble?
Gas
What are Electrons?
(3 Right Answers!)
Subatomic Particles
Elementary Particles
Leptons
Is carbon dioxide (CO2) an example of an atom?
No! An atom is the smallest single form of an element!
CO2 has a carbon atom and 2 oxygen atoms!
Syrup is twice as dense as Water
Quantitative
It is a measure of density using numbers!
Density is a measurement of what kind of property?
Physical!
Measures the mass of a substance in a specific volume.
(mass / volume)
How do particles move in a liquid?
Slip + Sliding
medium speed
circling each other
According to the Law of Conservation of Mass:
The mass of the reactants is ______ as the mass of the products.
remains the same
What is the role of the proton in the atom?
It determines the elemental identity of the atom
i.e. Carbons have 6, Oxygens have 8, Hydrogens have 1...
Mercury is a liquid
Qualitative
"Liquid" is a describing word, not a number/measurement
Baking Christmas cookies
Chemical!
Baking is FULL of chemical reactions, such as rising and state changes -- liquid batter to solid cookies
1. Takes the shape of its container
2. Has a definite volume
Liquid
What state do we start and finish with when matter undergoes deposition?
A gas to a solid
Skips the liquid phase entirely
What force allows electrons to bond with other atoms and to the nucleus
Electromagnetic Force
The solubility of salt is higher than sugar.
Quantitative
Solubility is measurable, and it being "higher" would have been measured!
Rusting on a car door
Chemical!
Rust is a chemical reaction with OXYGEN!
What is the state change of a SOLID to a GAS called?
Sublimation
If I had a density tower with:
Water (1 g/mL), Syrup (4 g/mL)
Where would a bouncy ball with a density of 3 end up??
It would sit at the boundary between the water and syrup
On top of the syrup but sink through the water!
What are protons and electrons made of? Name the two types.
Up and Down Quarks
The chemical reaction formed a powder
Qualitative
No measurements here! Just words describing what happened.