Chemistry Quiz: The Water Molecule

What is the main atom present in living organisms?

• Iron

• Oxygen

• Sulfur

• Calcium

What type of molecule is water?

• Polar

• Ionic

• Covalent

• Nonpolar

What is the force of molecular attraction between water molecules called?

• Adhesion

• Cohesion

• Hydrogen Bond

• Surface Tension

What is the pH of acids compared to bases?

• Depends on the type

• Less than

• Equal

• Greater than

What is the property of water that allows aquatic plants to photosynthesize even at depth?

• Adhesion

• Surface Tension

• Cohesion

• Transparency

Which physical property is characteristic of acids?

• Soluble in Water

• Bitter Taste

• Conductivity

• Turns Blue Litmus Paper

What is the chemical reaction between magnesium and hydrochloric acid?

• Mg(s) + HCl(aq) -> MgCl2(s) + H2(g)

• Mg(s) + 2HCl(aq) -> MgCl(s) + H(g)

• Mg(s) + HCl(aq) -> MgCl(s) + H(g)

• Mg(s) + 2HCl(aq) -> MgCl2(s) + H2(g)

What is the property of water that helps organisms maintain a constant body temperature?

• High Specific Heat Capacity

• Low Density Solid

• High Heat of Vaporization & Fusion

• Solubility

What is the property of water that allows it to dissolve more substances than any other common liquid?

• Taste

• Hazards

• Liquid medium for the chemistry of life

• Conductivity

What determines the pH of a solution?

• Reaction with Metal

• Heat of Vaporization

• Corrosion

• Ionization