PES Chemistry Review

How do you feel about this test?

A. Pretty confidentB. I understand most of itC. I’m completely lost!

What is the nucleus of an atom made up of?A. ProtonsB. NeutronsC. ElectronsD. A and BE. A and C

The definition of a solid is:

A. A substance with densely packed particles, with a definite shape

B. A substance with loosely packed particles that can take the shape of their container

C. A substance with particles that move independently of one another.

D. A substance made of hot, highly ionized, electrically conducting gas.

Orange Juice?

A. Heterogeneous MixtureB. Homogeneous Mixture

Chocolate Chip Cookie Dough?

A. Heterogeneous MixtureB. Homogeneous Mixture

Orange Juice with Pulp?

A. Heterogeneous MixtureB. Homogeneous Mixture

Breaking a pencil?

A. Physical ChangeB. Chemical Change

Burning paper?

A. Physical ChangeB. Chemical Change

Boiling water?

A. Physical ChangeB. Chemical Change

What is the atomic number of sodium?

110

How many protons does Silver have?

470

How many electrons does a neutral atom of Sulfur have?

160

How will Magnesium fulfill its octet?

A. Gain 2 protonsB. Gain 2 electronsC. Lose 2 protonsD. Lose 2 electrons

What will the charge on Magnesium be after it loses 2 electrons?

A. Mg2+

B. Mg2-

C. Mg2

D. 2Mg

What is mass number?

A. The number of protonsB. The number of protons plus electronsC. The number of protons plus neutronsD. The number of neutrons plus electrons

If Xenon has 54 protons and 77 neutrons, what is its mass number?

1310

Rubidium has a mass number of 85. How many neutrons does it have?

480

Which of the following is the correct electron dot structure for aluminum?

A. [Option 1]

B. [Option 2]

C. [Option 3]

D. [Option 4]

Classify the following bond: CO2

A. IonicB. CovalentC. Metallic

Classify the following bond: Cu

A. IonicB. CovalentC. Metallic

Classify the following bond: KBr

A. IonicB. CovalentC. Metallic

Calculate the formula mass of H2O

180.5

Calculate the formula mass of Al2O3

1020.5

Name the type of reaction:2H2O → 2H2 + O2

A. SynthesisB. DecompositionC. Single ReplacementD. Double ReplacementE. Combustion

Name the type of reaction:CH4 + 2O2 → CO2 + 2H2OA. SynthesisB. DecompositionC. Single ReplacementD. Double ReplacementE. Combustion

How many valence electrons does chlorine have?

70

How many valence electrons does gallium have?

30

Balance the following equationCa + N2 Ca3N2

A. Ca + N2 Ca3N2

B. Ca3 + N2 Ca3N2

C. 6Ca + 2N2 2Ca3N2

D. 3Ca + N2 Ca3N2

Balance the following equation:BiCl3 + H2S Bi2S3 + HCl

A. 2BiCl + H2S3 Bi2S3 + 2HClB. 2BiCl3 + 3H2S Bi2S3 + 6HClC. BiCl3 + 3H2S BiS3 + H2Cl3D. 4BiCl3 + 6H2S 2Bi2S3 + 12HCl

When Li1+ and Se2- combine, what compound do they form?A. LiSeB. Li2Se

C. LiSe2

When Ca2+ and N3- combine, what compound do they form?A. Ca3N2

B. Ca2N3

C. CaN

I am better prepared for this test.

A. Yep!B. Definitely not!

I plan on studying before Friday. BE HONEST!A. Yes…because I really need to (or my parents are

making me)B. Maybe a little.C. Study? What’s that?