CC7: Water and solutions

What percentage of the human body is made up of water?

• 60%

• 50%

• 70%

• 80%

What is the chemical name for water?

• Sodium chloride

• Carbon dioxide

• Hydrochloric acid

• Dihydrogen monoxide

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

• Sodium hypochlorite

• Acetic acid

• Hydrogen peroxide

• Sodium chloride

What property of water makes it an effective solvent?

• Tastelessness

• Polarity

• Colorlessness

• Odorlessness

Which of the following is NOT a polar molecule?

• Hydrogen peroxide

• Water

• Oil

• Ethanol

What does the term 'electrolytes' refer to?

• Gaseous compounds

• Solid salts

• Non-polar molecules

• Ions in a solution

Who is credited with the discovery that substances dissolved in water can conduct electric currents?

• William Whewell

• Isaac Newton

• Michael Faraday

• Svante Arrhenius

What is the molarity of a solution?

• Grams of solute per liter of solution

• Moles of solute per liter of solution

• Moles of solute per kilogram of solvent

• Liters of solvent per mole of solute

Which type of acid is considered a strong electrolyte?

• Hydrochloric acid

• Acetic acid

• Carbonic acid

• Citric acid

What is the main action of hydrogen peroxide on stains?

• Oxidation

• Reduction

• Precipitation

• Filtration