Unit Terminology
Units 1 & 2
Units 3,4,5
Units 6,7,8
Regents Questions
100
The desire to gain electrons
Electronegativity
100
A substance that can be physically separated and has no uniformity
Heterogeneous Mixture
100
2 types of bonds
Ionic and covalent
100
How many times stronger of a base is 13 compared to 10
1,000 times
100
An atom of magnesium has an atomic number of 12 and a mass number of 24.
How many neutrons does this atom contain?
12 neutrons
200
A negative ion
Anion
200
HF, NaCl, BeF2
Compound
200
The atomic radius of Nitrogen
71pm
200
What is the formula for propene
C3H6
200
Which element has chemical properties most similar to sodium (Na)?
- Mg
- K
- Ca
- Al
2. K
300
The strongest IMF, only found when Hydrogen is bound to N,O or F
Hydrogen bonding
300
J.J. Thompson discovered this with his Cathode Ray Tube experiment
The electron
300
Name CoO
Cobalt (II) Oxide
300
What type of decayed occurs when 1 neutron becomes a proton
Beta decay
300
What is the total number of moles present in 36 grams of H₂O?
2 moles
400
A model for the atom that involves a dense positive nucleus, and electrons found in areas of high probability called orbitals
Wave-mechanical model
400
The classification of an element when they can only exist in pairs
Diatomic
400
How many moles of LiF are present in a 54g sample?
~2 moles
400
What ions do acids and bases dissolve into
H+ and OH-
400
Given the balanced equation:
2H2+O2→2H2O
If 4 moles of O₂ react completely, how many moles of H₂O are produced?
8 moles of H2O
500
The amount of force a substance exerts while attempting to change phase
Vapor pressure
500
Explain what contributions to chemistry the Gold Foil experiment made
Atoms are mostly empty space with a dense positive nucleus
500
Balance this reaction:
__Li + __CaF2 --> __Ca + __LiF
_2_Li + __CaF2 --> __Ca + _2_LiF
500
Alpha Decay
500
A solution has a pH of 3. Which statement is correct?
- The solution is basic and has a high OH⁻ concentration.
- The solution is acidic and has an H⁺ concentration of 1×10−3 M.
- The solution is neutral.
- The solution has an H⁺ concentration of 1×10−11 M.
2. The solution is acidic and has an H⁺ concentration of 1×10−3 M.