#1
What property of water allows it to form hydrogen bonds?
Polarity
ExplanationWater's polarity enables the formation of hydrogen bonds.
#2
Which of the following is NOT a property of water?
Low heat capacity
ExplanationWater has high heat capacity, not low.
#3
What is the process called when water changes from a liquid to a gas?
Evaporation
ExplanationThe change from liquid to gas in water is evaporation.
#4
What is the chemical formula for water?
H2O
ExplanationWater's chemical formula is H2O.
#5
What is the process by which water returns to the Earth's surface in the form of precipitation?
Precipitation
ExplanationWater returning to the Earth's surface as precipitation is called precipitation.
#6
What is the maximum density of water?
4°C
ExplanationWater reaches its maximum density at 4°C.
#7
What is the phenomenon where water molecules stick to other substances called?
Adhesion
ExplanationThe sticking of water molecules to other substances is adhesion.
#8
Which of the following is a property of water that helps regulate temperature?
High heat capacity
ExplanationWater's high heat capacity aids in temperature regulation.
#9
What is the pH of pure water at 25°C?
7
ExplanationPure water has a neutral pH of 7 at 25°C.
#10
What property of water allows it to dissolve many substances?
Polarity
ExplanationWater's polarity enables it to dissolve many substances.
#11
What is the boiling point of water at sea level?
100°C
ExplanationWater boils at 100°C at sea level.
#12
Which of the following is true about water's boiling point at higher altitudes compared to sea level?
It decreases
ExplanationWater's boiling point decreases at higher altitudes.
#13
Which of the following is a unique property of water related to its expansion when frozen?
It becomes less dense
ExplanationWater expands when frozen, becoming less dense.