Water Properties Quiz

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Questions and Answers

What is the chemical formula for water?

NaCl
H2O (correct)
H2O2
CO2

What type of bond connects the hydrogen and oxygen atoms in a water molecule?

Covalent bond (correct)
Van der Waals forces
Ionic bond
Metallic bond

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

104.45 degrees (correct)
90 degrees
180 degrees
120 degrees

What is the state of H2O at standard temperature and pressure?

<p>Liquid (C)</p> Signup and view all the answers

What is the primary function of water in living organisms?

<p>Acting as a solvent for biochemical reactions (A)</p> Signup and view all the answers

Flashcards

What is the chemical formula for water?

A compound consisting of two hydrogen atoms and one oxygen atom, represented by the formula H2O.

What are the three physical states of water?

Water exists in three states: solid (ice), liquid (water), and gaseous (water vapor).

Why is water called the 'universal solvent'?

As a solvent, water dissolves many substances, allowing for chemical reactions and the transport of nutrients in living organisms.

What makes water a polar molecule?

Water molecules are 'polar,' meaning they have a slightly positive and slightly negative end, resulting in hydrogen bonds between molecules.

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What is meant by water's high heat capacity?

Water's high heat capacity allows it to absorb and release large amounts of heat without significant temperature changes, important for regulating Earth's climate and maintaining stable body temperatures.

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Study Notes

Water Properties

Water is an inorganic compound with the chemical formula H₂O.
It's a transparent, tasteless, odorless, and nearly colorless substance.
Water is the primary component of Earth's hydrosphere and living organisms, acting as a solvent.
Crucial for life, but doesn't provide food energy or organic micronutrients.
Each water molecule (H₂O) has one oxygen atom and two hydrogen atoms bonded covalently.
Hydrogen atoms are attached to oxygen at a 104.45° angle.
Liquid water is commonly referred to as simply "water" under standard conditions.

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Description

Test your knowledge on the fundamental properties of water, including its chemical composition, physical characteristics, and its vital role in the environment. This quiz covers essential facts and concepts related to the science of water.