Chemistry & Water

Pure water has a

• Neutral pH 
• Negative pH
• Positive pH
• Both Negative and Positive pH

A Compound that is being dissolved is called a

• Solution
• Solute
• Solvent
• Suspension

A water strider can skate along the top of a pond because:

• covalent bonds result in water cohesion
• hydrogen bonds result in water cohesion (surface tension)
• water striders have adapted to take advantage of water cohesion
• low surface tension of water

Tags

NGSS.HS-LS4-4

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Tags

NGSS.MS-PS1-1

Which end of the water molecule has a slightly positive charge?

• the oxygen end
• the hydrogen end
• both ends are slightly positive
• neither end is positive

Tags

NGSS.MS-PS1-1

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

Tags

NGSS.HS-ESS2-5

Acids have more what? 

• OH ions 
• OH- ions
• H+ ions 
• All of the above 

atomic number

• number of protons/stands for an element

• number of neutrons

• number of electrons

• number of protons and neutrons

Tags

NGSS.HS-PS1-7

mass number

• number of protons

• number of electrons

• number of protons and electrons

• number of protons and neutrons

Tags

NGSS.MS-PS1-5

same number of protons, different number of neutrons

• atomic number

• mass number

• isotope

• ion