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

Fill in the Blank

What is the atomic number of Boron?

Fill in the Blank

What is the atomic mass of Boron?

.

Fill in the Blank

Question 10: What is the mass number of Boron?

Fill in the Blank

Question 11: How many protons are in Boron?

Fill in the Blank

How many neutrons are in Boron?

Fill in the Blank

How many electrons are in Boron?

Fill in the Blank

What element has the symbol Sn?

Fill in the Blank

What is the chemical symbol for Magnesium?

Fill in the Blank

What is the chemical symbol for Krypton?

Fill in the Blank

Formula: 3NaHCO₃

How many Elements are in Baking Soda? (See Formula Above)

Fill in the Blank

Formula: 3NaHCO₃

How many molecules are in the formula above?

Fill in the Blank

Formula: 3NaHCO₃

How many atoms are in one molecule in the formula above?

Fill in the Blank

Formula: 3NaHCO₃

How many Total Atoms are in the formula above?

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

Fill in the Blank

How many Protons are in Fe⁺²

Fill in the Blank

How many Neutrons are in Fe⁺²

Fill in the Blank

How many Electrons are in Fe⁺²

Fill in the Blank

How many Protons are in P^-3

Fill in the Blank

How many Neutrons are in P^-3

Fill in the Blank

How many electrons are in P^-3

Fill in the Blank

All atoms want ___ electrons in their outer shell (Except H it wants 2)

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