UNCW CHM 101 EXAM 1 QUESTIONS &
ANSWERS 2025!!
1 of 20
Term
A cube of copper has a mass of 25 kg. The density of copper is 8.94
g/cm3 . What is the length of each side of this cube?
Give this one a try later!
16 cm 14 cm
12 cm 18 cm
, Don't know?
2 of 20
Term
complete the equation with the correct number of
significant figures
21.2 cm + 0.67 cm = __
Give this one a try later!
22.1 cm 20.5 cm
21.87 cm 21.9 cm
Don't know?
3 of 20
Term
Which of the following is/are chemical properties of copper?
i.turns green when exposed to air
ii.has a reddish-brown color
iii. changes from a solid to a liquid at 1085 ºC
Give this one a try later!
ANSWERS 2025!!
1 of 20
Term
A cube of copper has a mass of 25 kg. The density of copper is 8.94
g/cm3 . What is the length of each side of this cube?
Give this one a try later!
16 cm 14 cm
12 cm 18 cm
, Don't know?
2 of 20
Term
complete the equation with the correct number of
significant figures
21.2 cm + 0.67 cm = __
Give this one a try later!
22.1 cm 20.5 cm
21.87 cm 21.9 cm
Don't know?
3 of 20
Term
Which of the following is/are chemical properties of copper?
i.turns green when exposed to air
ii.has a reddish-brown color
iii. changes from a solid to a liquid at 1085 ºC
Give this one a try later!
