Name: __________________
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SBI4U - 1.1 + 1.2 Quiz
Intro to Chemistry + Properties of Water
Multiple Choice (7 marks):
1. Nitric acid, HNO3, is added to potassium hydroxide, KOH. Which equation represents the
chemical reaction?
a. HNO3 + KOH -> KNO3 + H2O
b. HNO3 + KOH -> KNO3 + KOH
c. HNO3 + KOH -> KHNO3 + HO
d. HNO3 + KOH -> KOH + H2O
2. In a reaction between CH4 (methane) and O2 (oxygen gas), carbon loses electrons and
oxygen gains electrons. Which of the following is true?
a. Carbon is oxidized
b. Carbon is reduced
c. Oxygen is oxidized
d. This is a neutralization reaction
3. When water surrounds polar atoms or ions in a solution, separating them from one
another, this is called a:
a. Ionic bond
b. Redox reaction
c. Hydration shell
d. London dispersion force
4. Molecules that are strongly attracted to water molecules are called:
a. Non-polar
b. Hydrophilic
c. Hydrophobic
d. Low electronegativity
5. Which of the following is true about a solution that has a pH of 11?
a. It has a very high concentration of H+ ions
b. It has a balance of H+ and OH- ions
c. It is very acidic
d. It has a very high concentration of OH- ions
6. Which of the following molecules would not contain hydrogen bonding?
a. HF
b. CH4
c. H2S
d. H2O
7. A buffer is a weak acid or base that can compensate for changes in a solution to
maintain the proper pH level. In an ACIDIC solution, which of the following reactions
would occur?
a. H2CO3 -> HCO3- + H+
b. HCO3- + H+ -> H2CO3
Short Answer (13 marks)
1. Complete Table 1 using the symbol for each element. (3 marks)
Element
Symbol
# of Protons
# of Neutrons
Carbon
# of Electrons
Chlorine
2. Use your periodic table to draw a Bohr-Rutherford diagram for the element boron.
Make sure to include protons, neutrons and how many electrons are in each orbital. (3
marks)
3. Dehydration synthesis and hydrolysis are two important reactions in biochemistry.
Compare and contrast these reactions. (Hint – your answer should include water,
energy, building up, breaking down) (3 marks)
4. Water’s special properties are caused by hydrogen bonding. List two special properties
of water, and describe how that property is important for life on Earth. (4 marks)