Water & Solutions Video Quiz

What is the main reason water is considered the key to nearly everything?

• It falls from the sky

• It makes up about 60% of our bodies

• It is good at dissolving stuff

• It is involved in all chemical reactions

Which of the following is a characteristic of water that makes it an effective solvent?

• Abundance on Earth's surface

• Wide range of liquid temperatures

• All of the above

• Polarity of its molecules

What happens when a polar solid, like sugar, is mixed into a polar liquid, like water?

• The sugar molecules form clumps in the water

• The sugar molecules repel the water molecules

• The sugar molecules dissolve and separate

• The sugar molecules react with the water molecules

Which of the following substances would NOT dissolve in water?

• Salt

• Oil

• Acid

What are electrolytes?

• Substances that dissolve in water and conduct electricity

• Substances that dissolve in water but do not conduct electricity

• Substances that do not dissolve in water

• Substances that react with water to produce ions

What did Svante Arrhenius discover about the relationship between electrical conductivity and the concentration of ions in a solution?

• The concentration of ions does not affect electrical conductivity

• The higher the concentration of ions, the higher the electrical conductivity

• Electrical conductivity is only determined by the type of ions present

• The higher the concentration of ions, the lower the electrical conductivity

Partial charges (and polarity) are caused by

• unequal sharing of electrons

• transfer of electrons 

• sharing of electrons

• equal sharing of electrons

Earlier this year, we learned the terms anion and cation. Match the words with the appropriate charge. 

• cations are neutral 

  anions are negative

• cations are neutral 

  anions are positive

• cations are negative 

  anions are positive

• cations are positive 

  anions are negative

An aqueous solution is a __________ based solution. 

• hydrogen

• 
  

  water

• polar

• 
  

  sugar

What is the term for a solution that cannot dissolve more solute?

• Saturated

• Unsaturated

• Supersaturated

• Subsaturated