This Matters
What are the 4 states of matter?
Solid, liquid, gas, plasma
How many neutrons in an atom of Silicon?
What is the atomic number of neon (Ne)?
10
Type of Reaction
N2. +. O2. ---->. NO2
What is Synthesis?
What is the difference between elements and compounds?
2 or more elements make up a compound.
Balance the equation:
C 6 H 12 O 6 + O 2 --> CO 2 + H 2 O
C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O
Name all 3 subatomic particles AND their charges.
Protons +
Neutrons 0
Electrons -
How many electrons does the second energy level hold
A neutralization reaction is also this type of reaction
What is double displacement?
What are the smaller numbers below a compound called and what do they tell you?
subscript, the number of atoms
How many moles of oxygen are used in this equation?
C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O
What is 6?
How many neutrons does fluorine contain? (Mass # = 19)
Write the full electron configuration of a carbon (C) atom using the Aufbau principle and the periodic table.
1s2 2s2 2p2
These reactions require oxygen
What is combustion
Is mass an intensive physical, extensive physical, or chemical property?
Extensive Physical Property
What is the formula for density?
Density = Mass/Volume (Mass over volume)
What is an isotope?
Same element, different mass # (different # neutrons)
Name all 3 rules for electron configurations. One is a chart/principle. One is a principle. One is a rule.
Aufbau principle Pauli exclusion principle Hund's rule
2 HCl(aq) + Zn(s) → ZnCl2(aq) + H2(g)
What is a single displacement reaction
Name 4 ways/evidence to identify a chemical reaction.
Change in color/odor/texture/taste, etc.
Give off heat or light
Produce a gas (bubbles)
Form a precipitate (solid)
An ion of Chlorine will have this many electrons?
What is 18?
What is the charge on Oxygen when it ionizes?
-2
What is the current model of the atom called?
Quantum Mechanical Model or Electron Cloud Model
H2O2. ---->. H2. +. H2O
what type of reaction
What is decomposition?