Water molecule - properties, polarity and hydrogen bonding

A water molecule

• is polar

• is non-polar

• can be either polar or non-polar

Is water a good solvent?

• Water is a poor solvent due to its molecular structure.
• Water does not interact with solutes due to its lack of polarity.
• Water molecules have a partial negative charge on the oxygen atom and a partial positive charge on the hydrogen atoms, allowing them to interact with a variety of solutes.
• Water is a good solvent due to its molecular structure.

What property of water allows it to form hydrogen bonds?

• Non-polar nature

• Polar nature

• Linear shape

What substances dissolve in water?

• Oil
• acids

• Salt

• sugar

A hydrogen bond is

• an ionic bond involving hydrogen and oxygen atoms
• a repulsive interaction between two hydrogen atoms
• an attractive interaction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom
• a covalent bond involving hydrogen and oxygen atoms

Under standard conditions, water is primarily a liquid becouse

• Intermolecular forces
• Ionic bonding
• Hydrogen bonding

The water cycle is

• The water cycle is a continuous process of water circulation on Earth.
• The water cycle is a man-made phenomenon
• The water cycle is a process that only occurs in oceans

What enables the constant circulation of water in nature?

• Water partially evaporates at temperatures lower then 100^o C

• Aquatic rotation
• Water partially evaporates at temperatures higher then 100^o C

• Waterfall cycle