Chemical Bonding & Polymers

What type of bonding involves the sharing of electrons between atoms?

• Covalent bonding

• Hydrogen bonding

• Ionic bonding

• Metallic bonding

In ionic bonding, what happens to electrons between atoms?

• Electrons are shared

• Electrons are lost

• Electrons are transferred

• Electrons are gained

What is the convention for writing chemical formulas in chemistry?

• Include the atomic number in the formula.

• Write the subscript first, followed by the symbol of the element.

• Use only lowercase letters for the element symbols.

• Write the symbol of the element first, followed by the subscript indicating the number of atoms.

What property of polymers makes them flexible and durable?

• Short-chain molecular structure

• Long-chain molecular structure

• Rigid and brittle nature

• Low molecular weight

What is the basic unit of a polymer chain called?

• chain

• nucleotide

• polymer

• monomer

How do monomers bond together to form polymers?

• Monomers bond together through condensation reactions.

• Monomers bond together through polymerization.

• Monomers bond together through dehydration synthesis.

• Monomers bond together through hydrolysis.

What type of bonding occurs in a water molecule (H2O)?

• Metallic bonding

• Hydrogen bonding

• Polar covalent bonding

• Ionic bonding

In an ionic bond, which type of atom typically loses electrons?

• Noble gases

• Transition metals

• Non-metal atoms

• Metal atoms

What is the charge of an ion that has gained electrons?

• Negative

• Zero

• Neutral

• Positive

What is the significance of double bonds in covalent molecules?

• Double bonds in covalent molecules provide rigidity, restrict rotation, and influence shape and reactivity.

• Double bonds in covalent molecules increase flexibility

• Double bonds in covalent molecules decrease reactivity

• Double bonds in covalent molecules have no effect on rigidity