1. Nature of Matter Properties of Water
Chemistry Review
Nature of Matter
Properties of Water

2. Atoms, Elements and Bonds
The diagram to the right is a block from the periodic table. The number 13 stands for the number of ____ in aluminum.
electrons
neutrons
protons
quarks
The number 13 in the diagram is the atom’s ____.
atomic mass
weighted atomic mass
halogen group.
atomic number.

3. Atoms, Elements and Bonds
How many valence electrons does aluminum have? 13 8 4 3
Which of the following atoms would aluminum be able to bond with to form a stable molecule?
3 chlorine atoms (Cl is atomic number 17)
1 sodium atom (Na is atomic number 11)
3 hydrogen atoms (H is atomic number 1)
2 oxygen atoms (O is atomic number 8)

4. Atoms, Elements and Bonds
If 1 atom of aluminum (which has 3 valence electrons) bonds with 3 atoms of chlorine (each atom of which has 7 valence electrons), what type of bond is this?
convalent bond
ionic bond
van der Waals force
simple bond

5. Atoms, Elements and Bonds
Atoms of the same element that have different numbers of neutrons in the nucleus are called ____.
isotopes
ions
anions
familial atoms
A ___ is formed when two or more atoms join together chemically.
compound
hydrogen bond
molecule
van der Waals force

6. Atoms, Elements and Bonds
The basic unit of matter is the ___.
hydrogen atom
cell.
atom.
nucleus.
Negatively subatomic particles that orbit the nucleus of an atom are called ___.
ions
neutrons
electrons
protons

7. Atoms, Elements and Bonds
Which atom is shown here?
Beryllium (Be)
Carbon (C)
Neon (Ne)
Sodium (Na)

8. Atoms, Elements and Bonds
In which type of chemical bond do atoms share electrons?
simple bond
ionic bond
van der Waals force
covalent bond
In which type of chemical bond do atoms give away or receive electrons (and thereby become positive or negative)?

9. Atoms, Elements and Bonds
Which type of chemical bond is seen in this diagram?
covalent bond
ionic bond
van der Waals force
carbon rings
The behavior of an atom is determined by its ___.
total neutrons
total protons
innermost protons
outermost electrons ?

10. Atoms, Elements and Bonds
Which of the following is NOT a way that radioactive isotopes are used?
irradiation of canned food
cancer treatment
determine the age of rocks and fossils
bonding with copper to form bronze
Positively and negatively charged atoms are called ___.
subatomic particles
electrons
ions
compounds

11. Properties of Water
A molecule in which there is an uneven distribution of charges between atoms is called a ___ molecule.
covalent
polar
ionized
deionized
Water molecules are held together by ___ bonds.
ionic
carbon

12. Properties of Water
___ explains why water drops on a penny will bulge over the edge of the penny before spilling over.
adhesion
capillary action
covalence
cohesion
Water “sticks” to the sides of a graduate, forming a curve called the ___.
cohesion curve
adhesion curve
meniscus
convexion

13. Properties of Water Always measure from the ___ of the meniscus.
bottom
top
highest point
middle
The tendency of water to move from the roots of a plant to the stems and leaves is due to ___.
adhesion but not cohesion
cohesion but not adhesion
capillary action
the structure of the root

14. Properties of Water The universal solvent is ___.
a highly acidic solution
a highly alkaline solution
ammonia
water
In a saltwater solution, the salt is the ___.
solution
solute
solvent
suspension

15. Properties of Water Blood plasma is ___. a solution an acid
both acidic and basic
a suspension
The pH of pure water is ___. 3 14 7

16. Properties of Water
Any compound that forms H+ ions in solution is ___.
basic
acidic
neutral
able to form covalent bonds
Buffers that control pH in the body are important in ___.
producing sharp changes in pH that are needed for digestion
aiding respiration
maintaining homeostasis
maintaining pH at an average of around

17. Properties of Water
Which type of liquid mixture contains components that are all evenly distributed?
solute
solution
suspension
emulsion
Acid rain is formed when precipitation mixes with ___ in the atmosphere and forms carbonic acid.
CO2 N2 P K

18. Properties of Water Most of the foods we eat are ___. alkaline acidic
pretty close to neutral
basic
Oven cleaner is extremely basic. This means that is must have a pH of ___.
about 4
between 1 and 3
between 12 and 14
around 7