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Unit 2 Vocabulary Exam

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.
What two types of bonds are mentioned in the text as being involved in the formation of salt?
a)
Covalent and ionic
b)
Hydrogen and ionic
c)
Covalent and metallic
d)
Ionic and metallic
2.
What happens to the salt when it dissolves in water?
a)
It turns into a gas and evaporates.
b)
It forms a new substance called a hydrate.
c)
It breaks down into its original atoms.
d)
It reacts with water to form a new compound.
3.
What is the term used to describe the substance that is present in a larger amount when a substance dissolves in another?
a)
Solute
b)
Solvent
c)
Solution
d)
Excess reagent
4.
A ____________is the force that holds atoms together in a compound.
a)
Chemical Formula
b)
Chemical Reaction
c)
Chemical Bond
d)
Synthesis Reaction
5.

Cl2

a)

Ionic Bond

b)

Covalent Bond

6.

What is a negatively charged ion, formed when an atom gains one or more electrons?

a)

Anion

b)

Cation

c)

Covalent bond

d)

Chemical reaction

7.

What is a positively charged ion, formed when an atom loses one or more electrons?

a)

Anion

b)

Covalent bond

c)

Cation

d)

Chemical reaction

8.

What is a type of chemical bond where two atoms share electrons?

a)

Cation

b)

Covalent bond

c)

Anion

d)

Chemical reaction

9.

What is a process that involves the rearrangement of atoms and molecules, resulting in the formation of new substances?

a)

Chemical reaction

b)

Covalent bond

c)

Cation

d)

Anion

10.

What is a reactant that is present in a larger amount than needed for a complete reaction?

a)

Covalent bond

b)

Chemical reaction

c)

Hydrate

d)

Excess reagent

11.

What is a compound that contains water molecules within its structure?

a)

Excess reagent

b)

Covalent bond

c)

Ionic bond

d)

Hydrate

12.

What is a type of chemical bond formed by the electrostatic attraction between oppositely charged ions?

a)

Mole

b)

Molecule

c)

Ionic bond

d)


Covalent bond

13.

What is molar mass?

a)

The mass of one mole of a substance, expressed in grams per mole (g/mol).

b)

A compound that contains water molecules within its structure.

c)

A group of two or more atoms held together by chemical bonds.

d)

A process that involves the rearrangement of atoms and molecules, resulting in the formation of new substances.

14.

What is a unit of measurement in chemistry that represents a specific number of particles (6.022 x 10^23)?

a)

Excess reagent

b)

Molecule

c)

Mole

d)

Molar mass

15.

What is a group of two or more atoms held together by chemical bonds?

a)

Hydrate

b)

Molar Mass

c)

Mole

d)

Molecule