Hydrogen Bonds in Water

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What gives water some key properties?

Formation of hydrogen bonds (correct)

Presence of ionic bonds

Lack of any type of bonds

Formation of covalent bonds

What type of molecule is water?

Nonpolar molecule

Ionic molecule

Covalent molecule

Polar molecule (correct)

What occurs due to the attraction between the positively charged oxygen and the negatively charged hydrogen in water?

Formation of ionic bonds

Formation of covalent bonds

No specific interaction occurs

Formation of hydrogen bonds (correct)

What do hydrogen bonds cause between 0°C and 100°C?

Cohesion Signup and view all the answers

What must happen in order for water to evaporate?

Hydrogen bonds must be broken Signup and view all the answers

Why does water remain a liquid up to 100°C?

It takes a lot of energy to break the hydrogen bonds Signup and view all the answers

What happens to the formation of hydrogen bonds between water molecules at 0°C?

More hydrogen bonds form, holding the water in a stationary position and forming ice Signup and view all the answers

Why does ice float in water?

Ice forms an open lattice structure, making it less dense than water Signup and view all the answers

What property of water makes it essential for the survival of aquatic organisms in terms of temperature regulation?

High specific heat capacity Signup and view all the answers

Why does the surface tension of water create a habitat for invertebrates like pond skaters?

It attracts water molecules to each other, producing surface tension Signup and view all the answers

How does the high latent heat of vaporisation of water benefit living things?

It provides a mechanism for cooling the surface of living things Signup and view all the answers

What enables water to transport substances around the body?

Cohesion and surface tension Signup and view all the answers

Why does a body of water maintain a fairly constant temperature?

The high specific heat capacity of water Signup and view all the answers

What is the role of ice in supporting organisms below its surface?

Ice forms an insulating layer, preventing the water below from freezing and supporting organisms Signup and view all the answers

Why does sweating help in cooling the surface of living things?

Evaporation of sweat requires a lot of energy due to high latent heat of vaporisation Signup and view all the answers

How does the transparency of water benefit aquatic plants?

It enables aquatic plants to carry out photosynthesis underwater Signup and view all the answers

Hydrogen Bonds in Water

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