Water Molecules Vocabulary Flashcards

Vocabulary flashcards based on the properties of water molecules lecture notes.

Compound

water consists of hydrogen and oxygen bonded together, therefore water is a ____________________.

Hydrogen bond

what type of bond forms between water molecules?

Covalent bond

2 hydrogen atoms and 1 oxygen atom bond to form a water molecule, what type of bond is it?

Polar molecule

because a water molecule has one side positively charged and one side negatively charged, it is considered a _______.

Adhesion

The property of water sticking to glass and other surfaces.

Cohesion

The property of water molecules sticking to other water molecules, causing water to form drop shapes.

Surface tension

A property resulting from cohesion that allows water bugs to walk on the water surface.

Mickey Mouse

The cartoon character that water molecules are often compared to due to their atomic structure shape.

Universal solvent

A term describing water due to its ability to dissolve a wide variety of substances.

Solute

The substance that gets dissolved in a solution, such as lemonade mix in lemonade.

Solvent

The substance that dissolves a solute in a solution, such as water in lemonade.

Solution

The liquid mixture produced when a solute dissolves in a solvent, such as lemonade mix combined with water.

Hydrophilic

Water-attracting or water-soluble; for example, salt dissolves in water because it is hydrophilic.

Hydrophobic

Water-repelling; exemplified in the lab when color dye moved away from a cotton swab dipped in dish soap.

Elements

Pure chemical substances composed of a single type of atom, such as hydrogen and oxygen.

positive

hydrogen atoms in water molecules have what charge?

negative

oxygen atoms in water molecules have what charge?

True

True or False? pure water is not fully colorless, it has a slight blue tint

Cohesion

water molecules join with other water molecules to form a “drop” shape

False

True or False? pure water has a pH of 9

False

True of False? pure water can conduct electricity

True

True or False? ice is less dense than liquid water

expands

when water freezes it does what?

surface tension

in the water lab, the floating paper clip on the water was an example of?

cohesion

in the water lab, drops of water on the penny were an example of?

density

in the water lab, the ice cube floating was an example of?