Topic 4 Chem Bonding

Which is correct for all solid ionic compounds?

• High volatility

• Poor electrical conductivity

• Low melting point

• Good solubility in water

How does a lithium atom form the most stable ion?

• The atom gains a proton to form a positive ion.

• The atom loses a proton to form a negative ion.

• The atom loses an electron to form a positive ion.

• The atom gains an electron to form a negative ion.

What is the IUPAC name of NiCO₃?

• nickel(II) carbonate

• nickel carbonate

• nickel(I) carbonate

• nitrogen(I) carbonate

How does a lithium atom form the most stable ion?

• The atom gains a proton to form a positive ion.

• The atom loses a proton to form a negative ion.

• The atom loses an electron to form a positive ion.

• The atom gains an electron to form a negative ion.

A substance has the above properties:

What is the most probable structure of this substance?

• Network covalent

• Polar covalent molecule

• Ionic lattice

• Metallic lattice

Which bonds cause the boiling point of water to be significantly greater than that of hydrogen sulfide?

• London (dispersion)

• Covalent

• Ionic

• Hydrogen

Which of the following does not react with dilute HCl(aq)?

• Na₂CO₃

• Cu

• Zn

• CuO

Which compound contains both ionic and covalent bonds?

• SIH₄

• NaNO₃

• H₂CO

• Na₂S

Which substance has the following properties?

• Low melting point

• Very soluble in water

• Does not conduct electricity when molten

• Glucose, C₆H₁₂O₆

• Silicon dioxide, SiO₂

• Sodium chloride, NaCl

• Tetrachloromethane, CCl₄

What is the formula of ammonium phosphate?

• (NH₃)₃PO₄

• (NH₄)₃PO₄

• (NH₄)₂PO₄

• (NH₃)₂PO₃