Water Chemistry

The chemical compound of water is

• HO

• H₂O

• H₃O

• HO₂

Tags

NGSS.MS-PS1-1

What is water made of?

• Water

• Liquid

• Hydrogen and oxygen

• Blue 

Tags

NGSS.MS-PS1-1

Attractions between water molecules are called

• Covalent bonds

• Ionic bonds

• Polar bonds

• Hydrogen bonds

How many hydrogen atoms are in 1 molecule of water (H₂O)?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

Water that is contaminated with lead will have a high ______.

• conductivity

• nitrates

• pH

• water hardness

Weak ___ bonds form between water molecules because of water's property of polarity.

• hydrogen

• covalent

• ionic

• liquid

Match the following

• one atom gives up an electron to another and then they are attracted to each other

• Covalent Bond

• an attraction between molecules of the same substance

• Hydrogen Bond

• a weak force of attraction between hydrogen and a negatively charged ion

• Ionic Bond

• an attraction between molecules of different substances

• Cohesion

• a chemical bond that involves the sharing of electron pairs between atoms

• Adhesion

What is a solution?

• part of an atom

• homogenous mixture

• a structure formed by two or more atoms held together by covalent bonds

• material composed of 2+ elements or compounds that are mixed together

Which describes polarity?

• uneven distribution of electrons

• even distribution of electrons

• substance in which the solute dissolved

• causes water molecules to be drawn inward toward one another

Which describes a solvent?

• uneven distribution of electrons

• even distribution of electrons

• substance in which the solute dissolved

• causes water molecules to be drawn inward toward one another