Particle theory and bonding：練習問題

Which statement correctly describes what happens when a gas condenses into a liquid according to the kinetic particle theory?

Which property of water is primarily responsible for its ability to act as a solvent for ionic salts like \( \text{NaCl} \)?

When sodium chloride (\( \text{NaCl} \)) dissolves in seawater, how do the water molecules interact with the resulting ions?

According to the kinetic particle theory, which subatomic particle is found in the nucleus of an atom and carries no electrical charge?

According to the kinetic particle theory, what occurs at the molecular level as liquid water at its boiling point is converted into water vapor?

Define the term covalent bonding as it applies to a molecule of water.

Explain how the formation of hydrogen bonds between water molecules contributes to the high specific heat capacity of water.

Describe the formation of the ionic bond in magnesium sulfate (\( \text{MgSO}_4 \)), identifying the specific electron transfer and the nature of the attraction between the resulting ions.

(a) Describe the structure of an atom, identifying the three subatomic particles, their locations, and their relative electrical charges.

(b) Using the principles of particle theory and bonding, explain how an ionic bond is formed between a sodium atom and a chlorine atom to create sodium chloride ( \( \text{NaCl}  \)).

Seawater is a complex mixture containing various dissolved ions and covalent molecules. Two examples include the ionic salt magnesium sulfate (\( \text{MgSO}_4 \)) and the covalent gas carbon dioxide (\( \text{CO}_2 \)).

(a) State the type of chemical bonding present in a molecule of carbon dioxide and describe how this bond is formed between the carbon and oxygen atoms. (2 points)

(b) Magnesium is a common element in seawater. Describe the structure of a magnesium atom, including the names of the three subatomic particles, their locations within the atom, and their relative charges. (3 points)