CHEM 103 EXAM 1 QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT
GUARANTEED SUCCESS
Question: Which standardized metric unit is designated for measuring physical
distance or length?
Answer: ✔️✔️ The primary SI unit for length is the meter (m).
Question: What is the specific base unit used to quantify the amount of matter
in an object (mass)?
Answer: ✔️✔️ The standard SI unit for mass is the kilogram (kg).
Question: In the International System of Units, how is the fundamental interval
of time measured?
Answer: ✔️✔️ The base unit for time is the second (s).
Question: Which unit is used for absolute temperature measurements in
scientific research?
Answer: ✔️✔️ The SI unit for temperature is the Kelvin (K), which starts at
absolute zero.
)
mega (M) -ANSWER ✔️✔️10^6m=1Mm
kilo (k) -ANSWER ✔️✔️10^3m=1km
centi (c) -ANSWER ✔️✔️10^-2cm=1m
, milli (m) -ANSWER ✔️✔️10^-3mm=1m
micro (mu symbol) -ANSWER ✔️✔️10^-6um=1m
nano (n) -ANSWER ✔️✔️10^-9nm=1m
Angstrom (A) -ANSWER ✔️✔️10^-10m
pico (p) -ANSWER ✔️✔️10^-12m
Density -ANSWER ✔️✔️mass/volume
extensive property -ANSWER ✔️✔️a property that depends on the amount of
matter in a sample (mass, volume)
intensive property -ANSWER ✔️✔️a property that depends on the type of matter
in a sample, not the amount of matter (density)
atomic number -ANSWER ✔️✔️the number of protons in the nucleus of an atom
(z), bottom number
mass number -ANSWER ✔️✔️the sum of the number of neutrons and protons in
an atomic nucleus
Cation -ANSWER ✔️✔️A positively charged ion
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT
GUARANTEED SUCCESS
Question: Which standardized metric unit is designated for measuring physical
distance or length?
Answer: ✔️✔️ The primary SI unit for length is the meter (m).
Question: What is the specific base unit used to quantify the amount of matter
in an object (mass)?
Answer: ✔️✔️ The standard SI unit for mass is the kilogram (kg).
Question: In the International System of Units, how is the fundamental interval
of time measured?
Answer: ✔️✔️ The base unit for time is the second (s).
Question: Which unit is used for absolute temperature measurements in
scientific research?
Answer: ✔️✔️ The SI unit for temperature is the Kelvin (K), which starts at
absolute zero.
)
mega (M) -ANSWER ✔️✔️10^6m=1Mm
kilo (k) -ANSWER ✔️✔️10^3m=1km
centi (c) -ANSWER ✔️✔️10^-2cm=1m
, milli (m) -ANSWER ✔️✔️10^-3mm=1m
micro (mu symbol) -ANSWER ✔️✔️10^-6um=1m
nano (n) -ANSWER ✔️✔️10^-9nm=1m
Angstrom (A) -ANSWER ✔️✔️10^-10m
pico (p) -ANSWER ✔️✔️10^-12m
Density -ANSWER ✔️✔️mass/volume
extensive property -ANSWER ✔️✔️a property that depends on the amount of
matter in a sample (mass, volume)
intensive property -ANSWER ✔️✔️a property that depends on the type of matter
in a sample, not the amount of matter (density)
atomic number -ANSWER ✔️✔️the number of protons in the nucleus of an atom
(z), bottom number
mass number -ANSWER ✔️✔️the sum of the number of neutrons and protons in
an atomic nucleus
Cation -ANSWER ✔️✔️A positively charged ion
