Water

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Questions and Answers

What property of water allows it to dissolve and dissociate many particles?

Cohesion
Adhesion
Polarity (correct)
High heat capacity

What property of water helps in the regulation of temperature in the environment and in living organisms?

High heat of vaporization
High heat capacity (correct)
Density
Capillary action

What is the cause of capillary action in water?

High heat capacity
Cohesion
Adhesion (correct)
Surface tension

What property of water allows it to protect cells from the effects of dangerous acids and bases?

Amphiprotic nature (D) Signup and view all the answers

What property of water makes it less dense as a solid?

Hydrogen bonds (B) Signup and view all the answers

What property of water allows it to dissolve polar substances?

Polarity (C) Signup and view all the answers

What is the measure of the compactness of a substance?

Density (B) Signup and view all the answers

What property of water is responsible for creating the smallest surface area possible?

Surface tension (D) Signup and view all the answers

What property of water allows it to help regulate the temperature in the environment and in living organisms?

High heat capacity (D) Signup and view all the answers

What property of water allows it to act as either an acid or a base?

Amphiprotic nature (D) Signup and view all the answers

What property of water is responsible for the high boiling point of water?

Hydrogen bonds (A) Signup and view all the answers

What property of water is responsible for the cooling effect during evaporation?

High heat of vaporization (D) Signup and view all the answers

What is the percentage of water in the human body?

Over 70% (C) Signup and view all the answers

What type of bonding does water molecules have?

Covalent bonding (C) Signup and view all the answers

What causes the bent structure of the water molecule?

The two lone pairs of electrons on the oxygen atom (B) Signup and view all the answers

What is the angle between the hydrogen atoms and the oxygen atom in a water molecule?

105 degrees (D) Signup and view all the answers

What type of charge does the oxygen atom in a water molecule have?

Partial negative (D) Signup and view all the answers

What type of forces attract polar molecules to one another?

Dipole-dipole forces (C) Signup and view all the answers

Which form of water is solid?

Ice (A) Signup and view all the answers

Which form of water is liquid?

Rain (B) Signup and view all the answers

Which form of water is gas?

Steam or water vapor (D) Signup and view all the answers

What is the composition of pure water in terms of color, taste, and odor?

Colorless, tasteless, and odorless (A) Signup and view all the answers

How much of the Earth's surface is covered by water?

Two-thirds (A) Signup and view all the answers

What makes water essential for life?

Its structure and properties (A) Signup and view all the answers

Flashcards

Water's Polarity

Water's asymmetrical charge distribution allows it to interact with and dissolve many substances.

High Heat Capacity

Water can absorb a lot of heat without a significant temperature change, stabilizing environments and organisms.

Capillary Action

Water has the capability to move upwards against gravity in narrow tubes due to its adhesive properties.