The Ultimate Chemistry Review

We Didn't Learn This

100

What is the difference between an ionic bond and a covalent bond?

Ionic bonds involve the transfer of electrons. Covalent bonds involve the sharing of electrons.

200

Are high melting points an ionic or covalent property?

Ionic

300

Is C₆H₁₂O₆ an ionic or covalent molecule?

Covalent

400

H₂O --> H₂ + O₂

Is this reaction a synthesis or decomposition reaction?

Decomposition

500

How many grams are in one mole of iodine?

126.9 g/mol

This Matters

100

What are the 4 states of matter?

Solid, liquid, gas, plasma

200

What is the difference between elements and compounds?

2 or more elements make up a compound.

300

Is the atomic number located above or below the element's symbol on the periodic table?

Above the symbol.

400

Is odor an intensive physical, extensive physical, or chemical property?

Intensive Physical Property

500

Name 4 ways/evidence to identify a chemical reaction.

1. Change in color/odor/texture/taste, etc.

2. Give off heat or light

3. Produce a gas (bubbles)

4. Form a precipitate (solid)

Do the Math

100

Convert 16.45m to cm

1645 cm

200

~~~DOUBLE POINTS!!!~~~ Are the following measurements more ACCURATE or PRECISE when compared to the measurement of 100.0 degrees. Measurements: 77.4, 78.9, 77.1 degrees

PRECISE.

300

Write the following number in scientific notation: 6,300,000

6.3 x 10^6

400

What is the formula for density?

Density = Mass/Volume (Mass over volume)

500

Calculate the density of a material that has a mass of 52.457 g and a volume of 13.5cm³

3.89 g/cm³

Atoms are Everywhere

100

What is the atomic number of neon (Ne)?

10

200

Name all 3 subatomic particles AND their charges.

Protons +

Neutrons 0

Electrons -

300

How many neutrons does fluorine contain? (Mass # = 19)

10

400

What is an isotope?

Same element, different mass # (different # neutrons)

500

What is the charge on Oxygen when it ionizes?

-2

Electron Configuration

100

S orbitals have what kind of shape?

Spherical (circular)

200

How many electrons does an orbital hold?

2

300

Write the full electron configuration of a carbon (C) atom using the Aufbau principle and the periodic table.

1s² 2s² 2p² 

400

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

500

What is the current model of the atom called?

Quantum Mechanical Model or Electron Cloud Model