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CH 2.1 & 2.2 Vocabulary

Total questions: 22

Worksheet time: 11mins

Name
Class
Date
1.

What is the attraction between a hydrogen atom with a partial positive charge and another with a partial negative charge?

a)

Cohesion

b)

Adhesion

c)

Hydrogen bond

d)

Ionic bond

2.

Which term describes the substance in which the solute dissolves?

a)

Solvent

b)

Solute

c)

Suspension

d)

Mixture

3.

What is the attraction between molecules of the same substance called?

a)

Adhesion

b)

Cohesion

c)

Ionic bond

d)

Covalent bond

4.

What is a material composed of two or more elements or compounds that are physically mixed together but not chemically combined?

a)

Solution

b)

Mixture

c)

Compound

d)

Solvent

5.

What is the term for a compound that produces hydroxide ions (OH-) in solution?

a)

Acid

b)

Base

c)

Solvent

d)

Buffer

6.

mixture of water and nondissolved materials

a)
solutions
b)
emulsions
c)
suspensions
d)
colloids
7.

weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH

a)
Acids
b)
Salts
c)
Alkalis
d)

Buffer

8.

the substance that is dissolved

a)
solvent
b)
solution
c)
suspension
d)
solute
9.

attraction between molecules of a different substance

a)
Cohesion
b)
Magnetism
c)
Surface tension
d)
Adhesion
10.

all of the components are evenly dispersed throughout

a)
heterogeneous mixture
b)
solution
c)
homogeneous mixture
d)
suspension
11.

any compound that releases hydrogen ions (H+) in solution

a)
Salt
b)
Base
c)
Neutral compound
d)
Acid
12.

a measurement system used to indicated the concentration of H+ ions in solution

a)
pOH scale
b)

acid scale

c)
conductivity gauge
d)
pH scale
13.

What is the basic unit of matter?

a)

Atom

b)

Molecule

c)

Ion

d)

Compound

14.

What is a bond formed when atoms share electrons?

a)

Ionic bond

b)

Covalent bond

c)

Hydrogen bond

d)

van der Waals forces

15.

What is a negatively charged particle that is in constant motion around the nucleus of an atom?

a)

Proton

b)

Neutron

c)

Electron

d)

Ion

16.

What is the center of an atom that contains protons and neutrons?

a)

Electron cloud

b)

Nucleus

c)

Ion

d)

Molecule

17.

What is a substance formed by the chemical combination of two or more elements in definite proportions?

a)

Mixture

b)

Solution

c)

Compound

d)

Suspension

18.

atoms of the same element that have a different number of neutrons

a)
Allotropes
b)
Isotopes
c)
Molecules
d)
Compounds
19.

a bond formed when one or more electrons is transferred from one atom to another

a)
Covalent bond
b)
Metallic bond
c)
Hydrogen bond
d)
Ionic bond
20.

a slight attraction between molecules when they are very close together

a)
van der Waals forces
b)
covalent bonds
c)
ionic bonds
d)
hydrogen bonds
21.

the structure that rests when two or more atoms are joined by covalent bonds

a)
Atom
b)
Compound
c)
Molecule
d)
Ion
22.

an atom involved in an ionic bond that has either gained or lost electrons

a)
element
b)
compound
c)
molecule
d)
ion