Solutions and Solubility Quiz

What is a solute?

• The substance that does the dissolving in a solution.
• The substance that is dissolved into the solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

Another name for a homogeneous mixture is

• an element.

• a solution.

• a compound.

• a precipitate

State whether the following compound is soluble or insoluble.  calcium carbonate CaCO₃ 

• soluble
• insoluble

State whether the following compound is soluble or insoluble. potassiun bromide KBr

• Soluble
• Insoluble

State whether the following compound is soluble or insoluble. Zinc hydroxide Zn(OH)₂

• Soluble 
• Insoluble

Tags

NGSS.HS-PS1-1

State whether the following compound is soluble or insoluble. iron(II) sulfide, FeS

• soluble

• insoluble

State whether the following compound is soluble or insoluble, Potassium hydroxide KOH

• Soluble

• Insoluble

Why can water have no net charge but have slight charges in different parts of the molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive
• The hydrogen end is slightly negative and the oxygen end is slightly positive
• The hydrogen and oxygen ends change in polarity
• Because it is hydrophobic

Water is polar because...

• The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
• The molecule has two poles, at which the it is colder than other regions of the molecule.
• The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
• The water molecule is neutral.