Compounds & Chemical Reactions Quiz

What is a polyatomic ion?

• A molecule with a net charge

• A neutral molecule

• A single charged atom

• A molecule with only covalent bonds

What are acids and bases?

• Acids donate protons; bases donate hydroxide ions

• Acids donate hydroxide ions; bases donate protons

• Acids neutralize acids, and bases neutralize bases

• Both A and C

What does the pH scale measure?

• The strength of acids and bases

• The mass of a substance

• The density of a liquid

• The atomic structure of an element

What do the coefficients in chemical equations indicate?

• The proportions of reactants and products

• The chemical symbols of elements

• The speed of the reaction

• The atomic weight of the reactants

Tags

NGSS.MS-PS1-5

What are reactants?

• Elements or compounds entering a reaction

• The products of a reaction

• A type of gas

• A type of liquid

Tags

NGSS.MS-PS1-5

What is an aqueous solution?

• A solution with water as the solvent

• A solution where the solute is an acid

• A solution of only solids

• A solution that contains oxygen

Which is the stronger acid, lemon juice or black coffee?

• Lemon juice

• Black coffee

• Both are equally strong

• Neither is an acid

Which is the stronger base, baking soda or bleach?

• Baking soda

• Bleach

• Both are equally strong

• Neither is a base

Which substance is considered caustic?

• Battery acid

• Oven cleaner

• Both A and B

• Neither

What are the two main goals atoms pursue when forming compounds?

• To have a stable electron arrangement and to be electrically neutral

• To lose all electrons and become positive

• To gain electrons and become negative

• To remain in their elemental state