Chemistry Regents Exam Review HW 7 (Solubility)

What percentage of our bodies is made up of water?

• 50%

• 80%

• 70%

• 60%

Which substance is known for being a strong oxidizer used in laundry?

• Acetic acid

• Ethanol

• Sodium hypochlorite

• Hydrogen peroxide

What property of water decreases the attraction between ions of different charges?

• Ionic bonding

• Dielectric property

• Polarity

• Electronegativity

What does the term 'molarity' refer to in a solution?

• The number of moles of solute per liter of solution

• The number of moles of solute per kilogram of solution

• The weight of the solute in the solution

• The volume of the solvent in the solution

What is required to calculate the molarity of a hydrogen peroxide solution?

• The temperature of the solution

• The volume of water used

• The weight of hydrogen peroxide per liter of water

• The color of the solution