CHEMISTRY FINAL EXAM QUESTIONS AND 100% CORRECT
DETAILED ANSWERS LATEST UPDATE 2025 GRADED A+
Is odor a chemical or physical property? -ANSWER: physical
When avocado spoils and turns black, is this a chemical or physical change? -ANSWER: Chemical
Is freezing a chemical or physical change? -ANSWER: physical
What is the SI unit for volume? -ANSWER: cubic meter
Classify tap water as element or compound. -ANSWER: Compound
What is the SI unit for mass? -ANSWER: kilogram
Convert 125 C to Kelvin -ANSWER: 398 K
What is the volume in mL of a 5 carat diamond, given the density of diamond is 3.51g/mL? (1
carat=200mg). -ANSWER: 0.2849mL
A 3kg rectangular object has measurements of 21.1 gem, 14.2 cm, and 12.1 cm. What is the objects
density in units of g/mL? -ANSWER: 0.8274g/mL
A bullet is fired at 5000 ft/s. What is this in units of miles/hr? -ANSWER: 3409
What is the density of a substance with a mass of 8.317g and a volume of 0.341 L? -ANSWER:
0.024g/mL
, At sea level, water freezes at which temperature(s)? -ANSWER: 0 C
A 5.0 gram sample of lead placed into 400 mL of water. What will be the new volume level of water in
units of mL? The density of lead is 11.34 g/cc. -ANSWER: 400.44 mL
How many microliters are in 50.0 mL? -ANSWER: 50000 microliter
Gasoline has a density of 0.749 g/mL. How many kilograms does 30 liters of gasoline weigh? -
ANSWER: 22.47
Electrons have an electrical charge of +1 -ANSWER: False
Which of the following is a characteristic of the modern periodic table? -ANSWER: The elements in
each group have similar chemical properties.
To form an ion, a sodium atom. -ANSWER: loses one electron
Noble gases are in Group 8A(18). -ANSWER: True
Calcium is a ___ block element -ANSWER: S
Magnesium is an element that is one example of ________. -ANSWER: a representative element
Iodine is a metal -ANSWER: False
Chromium forms more than one positive ion -ANSWER: True
Classify the following elements (match)
DETAILED ANSWERS LATEST UPDATE 2025 GRADED A+
Is odor a chemical or physical property? -ANSWER: physical
When avocado spoils and turns black, is this a chemical or physical change? -ANSWER: Chemical
Is freezing a chemical or physical change? -ANSWER: physical
What is the SI unit for volume? -ANSWER: cubic meter
Classify tap water as element or compound. -ANSWER: Compound
What is the SI unit for mass? -ANSWER: kilogram
Convert 125 C to Kelvin -ANSWER: 398 K
What is the volume in mL of a 5 carat diamond, given the density of diamond is 3.51g/mL? (1
carat=200mg). -ANSWER: 0.2849mL
A 3kg rectangular object has measurements of 21.1 gem, 14.2 cm, and 12.1 cm. What is the objects
density in units of g/mL? -ANSWER: 0.8274g/mL
A bullet is fired at 5000 ft/s. What is this in units of miles/hr? -ANSWER: 3409
What is the density of a substance with a mass of 8.317g and a volume of 0.341 L? -ANSWER:
0.024g/mL
, At sea level, water freezes at which temperature(s)? -ANSWER: 0 C
A 5.0 gram sample of lead placed into 400 mL of water. What will be the new volume level of water in
units of mL? The density of lead is 11.34 g/cc. -ANSWER: 400.44 mL
How many microliters are in 50.0 mL? -ANSWER: 50000 microliter
Gasoline has a density of 0.749 g/mL. How many kilograms does 30 liters of gasoline weigh? -
ANSWER: 22.47
Electrons have an electrical charge of +1 -ANSWER: False
Which of the following is a characteristic of the modern periodic table? -ANSWER: The elements in
each group have similar chemical properties.
To form an ion, a sodium atom. -ANSWER: loses one electron
Noble gases are in Group 8A(18). -ANSWER: True
Calcium is a ___ block element -ANSWER: S
Magnesium is an element that is one example of ________. -ANSWER: a representative element
Iodine is a metal -ANSWER: False
Chromium forms more than one positive ion -ANSWER: True
Classify the following elements (match)
