Oquizy

Water and ethanol are both liquids. John wonders why does ethanol evaporate faster?

Ethanol has weaker intermolecular forces Ethanol is denser than water Smaller particles bounce around more Water has a lower boiling point

Xinyi is doing an experiment. A cotton wool soaked in concentrated hydrochloric acid is placed at one end of a glass tube and another soaked in ammonia at the other. A white ring forms closer to the HCl end. Why?

Ammonia particles are heavier Ammonia particles diffuse faster due to lower mass Hydrochloric acid particles move faster They react immediately upon release

What is the number of neutrons in ³⁷₁₇Cl?

17 20 37 54

Which subatomic particle has no electrical charge?

Electron Neutron Nucleon Proton

John says: “When water boils, the H–O bonds are broken.” Is he correct?

No, boiling breaks the particles themselves No, boiling overcomes intermolecular forces only Yes, atoms are separated when boiling Yes, boiling breaks chemical bonds

Which statement explains why solids have a fixed shape?

Their particles are chemically bonded Their particles are far apart Their particles can only vibrate in fixed positions Their particles move freely in all directions

Quiz: Chemistry - The Particulate Nature Of Matter