WorksheetsBonds, pH, Water Review
Total questions: 23
Worksheet time: 11mins
Name
Class
Date
1.
Which two subatomic particles are located in the nucleus?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Electrons and Protons
2.
To what does the term valance refer?
a)
Electrons in the innermost energy level.
b)
Protons in the innermost energy level.
c)
Electrons in the outermost energy level.
d)
Protons in the outermost energy level.
3.
Between which subatomic particles to bonds form?
a)
Quarks
b)
Protons
c)
Neutrons
d)
Electrons
4.
Isotopes of the same element differ in which of the following?
a)
Their number of neutrons.
b)
Their number of protons.
c)
Their number of electrons.
5.
An atom that loses an electron becomes which of the following?
a)
A negatively charged ion.
b)
A neutral ion.
c)
A positively charged ion.
6.
Which of the following lists the bonds in order from weakest to strongest?
a)
Covalent, Hydrogen, Ionic
b)
Hydrogen, Ionic, Covalent
c)
Ionic, Covalent, Hydrogen
d)
Hydrogen, Covalent, Ionic
7.
In which type of bond are electrons shared unequally?
a)
Non-polar covalent bond
b)
Polar covalent bond
c)
Ionic bond
d)
Hydrogen bond
8.
Which of the following substances would have the greatest concentration of H+ ions?
a)
Ammonia with
pH 13
pH 13
b)
Water with
pH 7
pH 7
c)
Milk with
pH 5
pH 5
d)
Lemon juice with
pH 2
pH 2
9.
What type of substance has an equal concentration of H+ and OH- ions?
a)
Acid
b)
Base
c)
Neutral
10.
What type of substance regulates the pH of the body by releasing and capturing H+ ions?
a)
Alkalines
b)
Buffers
c)
Neutralizers
d)
Hydrogenators
11.
In which type of bond are electrons transferred?
a)
Non-polar Covalent Bonds
b)
Polar Covalent Bonds
c)
Ionic Bonds
d)
Hydrogen Bonds
12.
What type of bond forms between the oppositely charged ends of two different molecules?
a)
Non-polar Covalent Bonds
b)
Polar Covalent Bonds
c)
Ionic Bonds
d)
Hydrogen Bonds
13.
If an element has an atomic number of 26 and an atomic mass of 56, how many neutrons does it have?
a)
26
b)
30
c)
56
d)
82
14.
If an element has an atomic number of 15 and an atomic mass of 31,which of the following is true?
a)
It has 15 protons, 15 neutrons, and 16 electrons.
b)
It has 16 protons, 16 neutrons, and 15 electrons.
c)
It has 15 protons, 16 neutrons, and 16 electrons.
d)
It has 15 protons, 16 neutrons, and 15 electrons.
15.
How many electrons need to be in the outer shell of most elements to achieve stability?
a)
2
b)
8
c)
10
d)
18
16.
What type of bond holds together the individual hydrogen and oxygen atoms of a single water molecule?
a)
Covalent
b)
Hydrogen
c)
Ionic
17.
What type of bond holds together two or more molecules of water?
a)
Covalent
b)
Hydrogen
c)
Ionic
18.
Which property of water allows it to stick to other water molecules and create surface tension?
a)
Cohesion
b)
Adhesion
c)
Heat Capacity
d)
Universal Solvency
19.
Water is attracted to the sides of a glass tube due to which of its properties?
a)
Cohesion
b)
Adhesion
c)
Heat Capacity
d)
Universal Solvency
20.
The maintenance of constant internal body conditions is referred to as which of the following terms?
a)
Buffering
b)
Neturalizing
c)
Homeostasis
d)
Osmoregultion
21.
Which two types of compounds easily dissolve in water?
a)
Non-polar and Ionic Compounds
b)
Non-polar and Polar Compounds
c)
Polar and Ionic Compounds
22.
Which property of water allows it to readily transport materials throughout the body?
a)
It's lower density as a solid.
b)
It's high heat capacity.
c)
It's non-polar bonding.
d)
It's universal solvency.
23.
What term refers to a substance held together by covalent bonds?
a)
Ion
b)
Molecule
c)
Solute
d)
Solvent
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