Unit 2: Chemistry Review

Chemistry Review

Part 1: Nature of Matter
(Atoms, Molecules, and Compounds)

Multiple Choice

Which subatomic particle has a negative (-) charge?

• Proton

• Neutron

• Electron

Multiple Choice

Which subatomic particle has a positive (+) charge?

• Proton

• Neutron

• Electron

Multiple Select

Question 3: Which subatomic particles are found in the nucleus of an atom

• Proton

• Neutron

• Electron

Multiple Select

What is the basic unit of matter?

• An Atom

• Molecule

• Element

• Compound

Multiple Choice

A pure substance that consists of entirely of one type of atom is a(an):

• An Atom

• Molecule

• Element

• Compound

Multiple Choice

A substance formed by the chemical combination of two or more elements in definite proportions is a(an):

• An Atom

• Molecule

• Element

• Compound

Multiple Choice

The smallest unit of a compound is a(an):

• An Atom

• Molecule

• Element

• Compound

Part 2: Bonding

Multiple Choice

Type of Chemical bonds were electrons are shared

• Covalent bonds
• Hydrogen bonds
• Metallic bonds
• Ionic bonds

Multiple Choice

Type of Chemical bonds were electrons are transferred between atoms

• Covalent bonds
• Hydrogen bonds
• Metallic bonds
• Ionic bonds

Multiple Choice

In a single covenant bond ___ electrons are shared.

• 2

• 4

• 6

Multiple Choice

In a single covenant bond ___ electrons are shared.

• 2

• 4

• 6

Multiple Choice

In a double covenant bond ___ electrons are shared.

• 2

• 4

• 6

Multiple Choice

In a triple covenant bond ___ electrons are shared.

• 2

• 4

• 6

Multiple Choice

Which option in the image shows the correct Lewis dot diagram for CH₄

• A

• B

• C

• D

Multiple Choice

Which option in the image shows the correct Lewis dot diagram for the compound Cl₂CO

• A

• B

• C

• D

Part 3: Water and pH

Multiple Choice

The attraction of molecules of the same substance (i.e. water is attracted to water) is called

• suspension
• diffusion
• adhesion
• cohesion

Multiple Choice

The attraction of molecules of different substances (i.e. water is attracted to glass) is called

• Adhesion

• Surface Tension

• Cohesion

• Polarity

Multiple Choice

The unequal sharing of electrons during a covalent bond

• Polarity

• Adhesion

• Cohesion

• Surface Tension

• Viscosity

Multiple Choice

Solutions that have a high concentration of H+ ions (H+ > OH-) are...

• Acids

• Bases

• Neutral

Multiple Choice

Solutions that have a low concentration of H+ ions (H+ < OH-) are...

• Acids

• Bases

• Neutral

Multiple Choice

Solutions that have an equal concentration of H+ and OH- ions are...

• Acids

• Bases

• Neutral

Multiple Choice

Anything with a pH of less than 7 is is a(n) _____ substance

• Acidic

• Neutral

• Basic

Multiple Choice

Anything with a pH of more than 7 is a(n) _____ substance

• Acidic

• Neutral

• Basic

Multiple Choice

Anything with a pH around 7 is a(n) _____ substance

• Acidic

• Neutral

• Basic

Multiple Choice

Soda has a pH of 3, this means it is a(n) _______.

• Acid

• Base

• Neutral substance

Multiple Choice

Oven cleaner has a pH of 13, this means it is an _______.

• Acid

• Base

• Neutral substance

Multiple Choice

Soy milk has a pH of 7.2, this means it is an _______.

• Acid

• Base

• Neutral substance

Part 4: Organic Compounds

Multiple Choice

Which of the following is the function of Carbohydrates?

• Short term energy storage

• Long term energy storage

• Stores our genetic information

• Provides structure, transporting materials, speeding up chemical reactions

Multiple Choice

Which of the following is the function of Lipids?

• Short term energy storage

• Long term energy storage

• Stores our genetic information

• Provides structure, transporting materials, speeding up chemical reactions

Multiple Choice

Which of the following is the function of Nucleic Acids?

• Short term energy storage

• Long term energy storage

• Stores our genetic information

• Provides structure, transporting materials, speeding up chemical reactions

Multiple Choice

Which of the following is the function of Proteins?

• Short term energy storage

• Long term energy storage

• Stores our genetic information

• Provides structure, transporting materials, speeding up chemical reactions

Multiple Choice

Made up of monosaccharides

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Made up of monosaccharides

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Made up of amino acids

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Made up of Nucleotides

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Made up of Nucleotides

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Examples include waxes, oils and fats

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Examples include sugars and starches

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Examples include DNA and RNA

• Carbohydrates

• Lipids

• Nucleic Acids

• Proteins

Multiple Choice

Biological catalysts that speed up chemical reactions

• Enzymes
• Inhibitors
• Hormones
• Competitors

Multiple Select

Which of the following affect how an enzyme functions (Check all that apply)

• pH

• Temperature

• Odor

• Light

• Concentration (amount of substrate)

Multiple Select

Which of the statements below apply to enzymes (check all that apply)

• They speed up chemical reactions

• They can be reused over and over

• They cannot be reused

• They are made of proteins

• They are made of nucleic acids