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Unit 1: Matter & Energy
Unit 2: Gas Behaviors
Unit 3: Separating Mixtures
Unit 4: Atom
Unit 5: Bonding
100

A measure of the average kinetic energy of particles is

1. thermal energy
2. potential energy
3. volume
4. temperature

4. temperature

100

At constant temperature, as the pressure of a gas increases, the volume of the gas...

1. increases
2. decreases
3. remains the same
4. increases and then decreases

2. decreases (indirect relationship)

100

When two substances physically combine and their particles are unevenly distributed throughout the mixture, it is called a

1. homogeneous mixture
2. heterogeneous mixture
3. aqueous solution
4. compound

2. heterogeneous mixture

100

On the Periodic Table, the number of protons in an atom of an element is indicated by its

1. atomic mass
2. atomic number
3. number of neutrons
4. number of valence electrons

2. atomic number

100

The bond formed by the sharing of electrons between nonmetal atoms is called a(n)

1. ionic bond
2. metallic bond
3. covalent bond
4. hydrogen bond

3. covalent bond

200

The following choices are all physical properties except

1. flammability
2. phase of matter
3. melting point
4. density

1. flammability

200

The frequency of particle collisions against the walls of a container is measured by

1. temperature
2. volume
3. density
4. pressure

4. pressure

200

A technique that physically separates two substances in a mixture based on their difference in boiling points is called

1. filtration
2. chromatography
3. distillation
4. sublimation

3. distillation

200

Atoms that have the same amount of protons, but different amount of neutrons is called

1. an ion
2. an isotope
3. an ionic bond
4. an isomer

2. an isotope

200

The property of an element based on its attraction for electrons is

1. electronegativity
2. ionization energy
3. atomic radius
4. density

1. electronegativity

300

The phase change that changes from a gas directly to a solid is called

1. deposition
2. sublimation
3. condensation
4. evaporation

1. deposition

300

At STP, which gaseous sample has the same number of molecules as 3.0 liters of N2(g)?

1. 6.0 L of F2(g)
2. 4.5 L of N2(g)
3. 3.0 L of H2(g)
4. 1.5 L of Cl2(g)

3. 3.0 L of H2(g)

300

Matter that can be broken down by chemical means is called

1. an element
2. a compound
3. a mixture
4. a solution

2. a compound

300

Which term is defined as the region in an atom where an electron is most likely to be located?

1. nucleus
2. orbital
3. quanta
4. spectra

2. orbital

300

Which substance below is held together with ionic bonds?

1. CO2
2. AgCl
3. Br2
4. H2CO3

2. AgCl

400

Which equation below is used to determine the amount of heat that is released when ice freezes?

1. q=mC(Tf-Ti)
2. q=mHf
3. q=mHv
4. K=C + 273

2. q=mHf

400

Which 2 changes would make a gas more like an ideal gas?

1. increase temp and increase pressure
2. decrease temp and decrease pressure
3. increase temp, but decrease pressure
4. decrease temp, but increase pressure

3. increase temp, but decrease pressure

400

A mixture that contains at least 1 metal is called

1. a metallic bond
2. heterogeneous
3. a solution
4. an alloy

4. an alloy

400

What is the name of the group 17 elements?

1. alkali metals
2. alkaline earth metals
3. halogens
4. noble gases

3. halogens

400

A molecule that has an uneven distribution of electrons contains 

1. ionic bonds
2. polar covalent bonds
3. nonpolar covalent bonds
4. metallic bonds

2. polar covalent bonds

500

What happens to the potential energy when a sample of water freezes?

1. increases
2. decreases
3. stays the same
4. decreases and then increases

2. decreases

500

According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas? 

1. The particles are moving in circular paths.
2. The particles collide, decreasing the total energy of the system.
3. The particles have attractive forces between them.
4. The particles are considered to have negligible volume.

4. The particles are considered to have negligible volume.

500

A sea of mobile electrons holding atoms of Nickel together is called

1. a metallic bond
2. an ionic bond
3. a covalent bond
4. a hydrogen bond

1. a metallic bond

500

Which element has similar physical and chemical properties to Lithium?

1. Sr
2. Ar
3. Be
4. K

4. K (potassium)

500

Water has a high boiling point because its molecules have

1. weak intermolecular forces
2. strong intermolecular forces
3. weak intramolecular forces
4. strong intramolecular forces

2. strong intermolecular forces