CHEM 103 REVIEW TEST PAPER QUESTIONS AND
ANSWERS SURE A+
✔✔Micro - ✔✔µ
1/1,000,000 x basic unit
10^-6
✔✔nano - ✔✔n
1/1,000,000,000 x basic unit
10^-9 x basic unit
✔✔pico - ✔✔p
1/1,000,000,000,000 x basic unit
10^-12
✔✔Temperature Scales - ✔✔The three most commonly-used temperature scales are
the Fahrenheit, (1724), oF; Celsius or Centrigrade, (1742), oC and; Kelvin, (1848), K
scales.
The Celsius and Kelvin scales are used in scientific work.
Note that the Kelvin symbol does not use the degree sign.
Show that 77.0 oF = 25.0 oC
Show that 25.0 oC = 298.2 K
✔✔Relationships between temperature scales - ✔✔Absolute zero:
Fahrenheit: -459
Celsius: -273
Kelvin: 0
Freezing point:
Fahrenheit: 32
, Celsius: 0
Kelvin: 273
Water boils:
Fahrenheit: 212
Celsius: 100
Kelvin: 373
✔✔Hydrogen - ✔✔White
✔✔Oxygen - ✔✔Red
✔✔Carbon - ✔✔Black
✔✔Nitrogen - ✔✔Blue
✔✔1 L - ✔✔1000 mL
✔✔1 mL - ✔✔0.001 L
✔✔% accuracy - ✔✔actual/theory x 100
✔✔% error - ✔✔accepted-experimental/accepted x 100
✔✔Latin Derived Names - ✔✔gold, Au;
silver, Ag;
iron, Fe;
mercury, Hg;
lead, Pb;
sodium, Na;
copper, Cu;
tin, Sn and
potassium, K.
✔✔Two radioactive elements - ✔✔thorium, Th and uranium, U.
✔✔Compound Formulas - ✔✔A compound formula consists of the symbols of the
elements found in the compound. Each elemental symbol represents one atom of the
element. If more than one atom is represented, a subscript following the elemental
symbol is used.
✔✔The Structure of Atoms - ✔✔Atoms are made up of three subatomic particles,
protons, neutrons, and electrons.
The protons and neutrons are tightly bound together to form the central portion of an
atom called the nucleus.
ANSWERS SURE A+
✔✔Micro - ✔✔µ
1/1,000,000 x basic unit
10^-6
✔✔nano - ✔✔n
1/1,000,000,000 x basic unit
10^-9 x basic unit
✔✔pico - ✔✔p
1/1,000,000,000,000 x basic unit
10^-12
✔✔Temperature Scales - ✔✔The three most commonly-used temperature scales are
the Fahrenheit, (1724), oF; Celsius or Centrigrade, (1742), oC and; Kelvin, (1848), K
scales.
The Celsius and Kelvin scales are used in scientific work.
Note that the Kelvin symbol does not use the degree sign.
Show that 77.0 oF = 25.0 oC
Show that 25.0 oC = 298.2 K
✔✔Relationships between temperature scales - ✔✔Absolute zero:
Fahrenheit: -459
Celsius: -273
Kelvin: 0
Freezing point:
Fahrenheit: 32
, Celsius: 0
Kelvin: 273
Water boils:
Fahrenheit: 212
Celsius: 100
Kelvin: 373
✔✔Hydrogen - ✔✔White
✔✔Oxygen - ✔✔Red
✔✔Carbon - ✔✔Black
✔✔Nitrogen - ✔✔Blue
✔✔1 L - ✔✔1000 mL
✔✔1 mL - ✔✔0.001 L
✔✔% accuracy - ✔✔actual/theory x 100
✔✔% error - ✔✔accepted-experimental/accepted x 100
✔✔Latin Derived Names - ✔✔gold, Au;
silver, Ag;
iron, Fe;
mercury, Hg;
lead, Pb;
sodium, Na;
copper, Cu;
tin, Sn and
potassium, K.
✔✔Two radioactive elements - ✔✔thorium, Th and uranium, U.
✔✔Compound Formulas - ✔✔A compound formula consists of the symbols of the
elements found in the compound. Each elemental symbol represents one atom of the
element. If more than one atom is represented, a subscript following the elemental
symbol is used.
✔✔The Structure of Atoms - ✔✔Atoms are made up of three subatomic particles,
protons, neutrons, and electrons.
The protons and neutrons are tightly bound together to form the central portion of an
atom called the nucleus.
