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12 Cards in this Set

  • Front
  • Back

What is a cation?

A positively charged ion.

What is an anion?

A negatively charged ion.

Ionic bonds are mainly found in what parts of the body?

Found mainly in teeth and bones.

What is an electrolyte?

An ionic compound that breaks apart into positive and negative ions in solution. Can conduct electricity.

What are the common cations in the body? (8 things).

Hydrogen ion


Sodium ion


Potassium ion


Ammonium ion


Magnesium ion


Calcium ion


Iron (II) ion


Iron (III) ion

What are the common anions in the body?

Fluoride ion


Chloride ion


Iodide ion


Hydroxide ion


Bicarbonate ion


Oxide ion


Sulfate ion


Phosphate ion


What is the main difference between an ionic bond and a covalent bond?

An ionic bond involves the loss and gain of electrons; a covalent bond involves the sharing of pairs of electrons.

When does a hydrogen bond form?

Forms when a hydrogen atom with a partial positive charge attracts the partial negative charge of neighboring electronegative atoms

Hydrogen bonds are (strong/weak) compared to ionic and covalent bonds.

Hydrogen bonds are weak compared to ionic and covalent bonds.

Why would you expect ammonia (NH3) to form hydrogen bonds with water molecules?

Why would you expect ammonia (NH3) to form hydrogen bonds with water molecules?

The N is electronegative, attracts electrons more strongly than the H atoms do, the N end of ammonia acquires a slight negative charge, allowing H atoms to form hydrogen bonds with it. Likewise, O atoms in water molecules can form hydrogen bonds with H atoms in ammonia molecules.

What is surface tension?

A measure of the difficulty of stretching or breaking the surface of a liquid.

What is a special property of water, due to hydrogen bonding?

Cohesion: the tendency of like particles to stay together.