D425 Practice QUIZ with Detailed Verified
Solutions
Liquid
Mercury has a freezing point of −39°C and a boiling point of 356.73°C. Which state will
mercury be in at 0°C?
Solid
A substance has a definite shape and volume. The individual particles of this substance
are fixed in place, and the intermolecular interaction is strong. What is the physical state
of this substance?
Homogeneous Mixture
Oliver makes a cup of lemonade by squeezing fresh lemons into a cup and mixing sugar
and water in it. What is the category of matter of the lemonade?
Intensive and Physical
Leilani always keeps a lip balm in her car as a backup. On a hot summer day, Leilani
decided to use that lip balm and noticed that it had melted and could not be used.
Which property is the melting of the lip balm an example of?
Intensive and Physical
Lulu placed a pot of water to boil. She noticed that the water started boiling when the
temperature reached 100ºC. Which property is the boiling point of water an example
of?
Physical Change
, Maria was driving when a rock hit her windshield and shattered the glass. Which change
is the breaking of the glass an example of?
375 cm
The length of an iron bar is 12.3 ft. Whatis its length in centimeters, given 1 ft. = 12 in.
and 1 in. = 2.54 cm?
0.011 kg
A gold jewel weighing 15 g is made of 75% gold by mass. How many kilograms of gold
are there in the jewel?
2.50 × 10^3 km
The sides of a triangle measure 102 cm, 12.47 cm, and 135.821 cm. What is the
perimeter of the triangle?
22
Atoms of the element argon (Ar) have an atomic number of 18 and a mass number of
40. How many neutrons are there in the nucleus?
Isotopes are atoms that have the same atomic number but different mass numbers
because of varying numbers of neutrons
11. What is a characteristic feature of isotopes?
Protons, Neutrons & Electrons
What subatomic particles make up the atom?
79.90 amu
Solutions
Liquid
Mercury has a freezing point of −39°C and a boiling point of 356.73°C. Which state will
mercury be in at 0°C?
Solid
A substance has a definite shape and volume. The individual particles of this substance
are fixed in place, and the intermolecular interaction is strong. What is the physical state
of this substance?
Homogeneous Mixture
Oliver makes a cup of lemonade by squeezing fresh lemons into a cup and mixing sugar
and water in it. What is the category of matter of the lemonade?
Intensive and Physical
Leilani always keeps a lip balm in her car as a backup. On a hot summer day, Leilani
decided to use that lip balm and noticed that it had melted and could not be used.
Which property is the melting of the lip balm an example of?
Intensive and Physical
Lulu placed a pot of water to boil. She noticed that the water started boiling when the
temperature reached 100ºC. Which property is the boiling point of water an example
of?
Physical Change
, Maria was driving when a rock hit her windshield and shattered the glass. Which change
is the breaking of the glass an example of?
375 cm
The length of an iron bar is 12.3 ft. Whatis its length in centimeters, given 1 ft. = 12 in.
and 1 in. = 2.54 cm?
0.011 kg
A gold jewel weighing 15 g is made of 75% gold by mass. How many kilograms of gold
are there in the jewel?
2.50 × 10^3 km
The sides of a triangle measure 102 cm, 12.47 cm, and 135.821 cm. What is the
perimeter of the triangle?
22
Atoms of the element argon (Ar) have an atomic number of 18 and a mass number of
40. How many neutrons are there in the nucleus?
Isotopes are atoms that have the same atomic number but different mass numbers
because of varying numbers of neutrons
11. What is a characteristic feature of isotopes?
Protons, Neutrons & Electrons
What subatomic particles make up the atom?
79.90 amu
