GENERAL CHEMISTRY 1103 EXAM 1
QUESTIONS WITH COMPLETE
SOLUTIONS
Mega- - Correct Answers -1.0x10^6 (M)
Kilo- - Correct Answers -1.0x10^3 (k)
Deci- - Correct Answers -1.0x10^-1 (d)
Centi- - Correct Answers -1.0x10^-2 (c)
Milli- - Correct Answers -1.0x10^-3 (m)
Micro- - Correct Answers -1.0x10^-6 (μ)
Nano- - Correct Answers -1.0x10^-9 (n)
Pico- - Correct Answers -1.0x10^-12 (p)
Conversion Factors - Correct Answers -1kg = 2.205lbs, 1oz. = 28.35g
1mi = 1.609km, 1in = 2.54cm
1gal = 3.785L, 1L = 1.06qts
1g = 1ml = 1cm^3
1hr = 3600s
Kelvin to Celsius Conversions - Correct Answers -K = C+273.15
C= K-273.15
Celsius to Fahrenheit Conversions - Correct Answers -C = 5/9(F-32)
F= 1.8(C) + 32
Base SI Units - Correct Answers -Mass = Kilograms (kg)
Length = Meters (m)
Time = Seconds (s)
Temperature = Kelvin (K)
, Electric Current = Ampere (A)
Amount of Substance = mole (mol)
Luminous Intensity = Candela (cd)
Density Equation - Correct Answers -D=m/v; v=m/d; m=vd
J.J Tompson - Correct Answers -discovered electrons through Cathode Ray experiment
Rutherford Gold Foil Experiment - Correct Answers -Rutherford shot alpha particle into
sheets of metaland discovered nucleus/neutrons
AMU - Correct Answers -atomic mass unit
calculated by 1/12 of carbon atom
Chemical Properties - Correct Answers -A characteristic that changes the identity of the
substance.
Converted into a new substance
ex: oxidation, flamability
Physical Properties - Correct Answers -A characteristic that does not change the
identity of the substance.
Alters its appearance but not its composition
ex: melting ice, boiling point, density, color, solubility
extensive properties - Correct Answers -dependent on the sample size
ex. mass, volume
intensive properties - Correct Answers -independent of the sample size
ex: physical properties, density, color, temperature
Dalton Atomic Theory - Correct Answers -1. Element made up of atoms
2. All atoms of given elements are the same
3. Atoms of one element differ from one another
4. atoms of one element can combine with atoms of another element to form
compounds
5. atoms are indivisible. Cannot be created or destroyed
Pure Substance - Correct Answers -Element and compounds
ex: Splenda, Sugar, Ethanol, Water
Homogeneous Mixtures - Correct Answers -is the same throughout
Heterogeneous Mixtures - Correct Answers -has regions of different properties
Mixture - Correct Answers -two or more pure substances mixed by physical means
QUESTIONS WITH COMPLETE
SOLUTIONS
Mega- - Correct Answers -1.0x10^6 (M)
Kilo- - Correct Answers -1.0x10^3 (k)
Deci- - Correct Answers -1.0x10^-1 (d)
Centi- - Correct Answers -1.0x10^-2 (c)
Milli- - Correct Answers -1.0x10^-3 (m)
Micro- - Correct Answers -1.0x10^-6 (μ)
Nano- - Correct Answers -1.0x10^-9 (n)
Pico- - Correct Answers -1.0x10^-12 (p)
Conversion Factors - Correct Answers -1kg = 2.205lbs, 1oz. = 28.35g
1mi = 1.609km, 1in = 2.54cm
1gal = 3.785L, 1L = 1.06qts
1g = 1ml = 1cm^3
1hr = 3600s
Kelvin to Celsius Conversions - Correct Answers -K = C+273.15
C= K-273.15
Celsius to Fahrenheit Conversions - Correct Answers -C = 5/9(F-32)
F= 1.8(C) + 32
Base SI Units - Correct Answers -Mass = Kilograms (kg)
Length = Meters (m)
Time = Seconds (s)
Temperature = Kelvin (K)
, Electric Current = Ampere (A)
Amount of Substance = mole (mol)
Luminous Intensity = Candela (cd)
Density Equation - Correct Answers -D=m/v; v=m/d; m=vd
J.J Tompson - Correct Answers -discovered electrons through Cathode Ray experiment
Rutherford Gold Foil Experiment - Correct Answers -Rutherford shot alpha particle into
sheets of metaland discovered nucleus/neutrons
AMU - Correct Answers -atomic mass unit
calculated by 1/12 of carbon atom
Chemical Properties - Correct Answers -A characteristic that changes the identity of the
substance.
Converted into a new substance
ex: oxidation, flamability
Physical Properties - Correct Answers -A characteristic that does not change the
identity of the substance.
Alters its appearance but not its composition
ex: melting ice, boiling point, density, color, solubility
extensive properties - Correct Answers -dependent on the sample size
ex. mass, volume
intensive properties - Correct Answers -independent of the sample size
ex: physical properties, density, color, temperature
Dalton Atomic Theory - Correct Answers -1. Element made up of atoms
2. All atoms of given elements are the same
3. Atoms of one element differ from one another
4. atoms of one element can combine with atoms of another element to form
compounds
5. atoms are indivisible. Cannot be created or destroyed
Pure Substance - Correct Answers -Element and compounds
ex: Splenda, Sugar, Ethanol, Water
Homogeneous Mixtures - Correct Answers -is the same throughout
Heterogeneous Mixtures - Correct Answers -has regions of different properties
Mixture - Correct Answers -two or more pure substances mixed by physical means
