Molecular and Ionic compounds

Compounds composed of a ______________ and _____________ like the compound CaCl₂ , are ionic compounds.

• metal ... metal

• nonmetal ... nonmetal

• metal ... nonmetal

Answer explanation

In ionic compounds like CaCl2, a metal and a nonmetal combine to form the compound, making the correct answer choice 'metal ... nonmetal'.

In general, this type of bond will form a compound with a high melting point.

• Ionic

• Covalent

Answer explanation

Ionic bonds form compounds with high melting points due to strong electrostatic forces between oppositely charged ions.

Which of the following describes covalent bonds?

• Bonds form because of opposite charges

• electrons are shared to fill outer electron shells

• Electrons are transferred between atoms

• Covalent bonds are magical

Answer explanation

Covalent bonds involve sharing electrons to fill outer electron shells, distinguishing them from ionic bonds where electrons are transferred.

Ionic Bonding involves...

• The transfer of protons

• The transfer of nuetrons 

• The transfer of electrons

• None Of the above

Answer explanation

Ionic Bonding involves the transfer of electrons.

What elements generally make an ionic bond?

• metal and nonmetal

• 2 or more nonmetals

• metal

• none of the above

Answer explanation

Ionic bonds are generally formed between a metal and a nonmetal, making the correct answer choice metal and nonmetal.

What property is describing an ionic compound?

• shares electrons

• high melting point

• weak bonds

• made up of nonmetals.

Answer explanation

An ionic compound is described by its high melting point, which is a characteristic of compounds with strong ionic bonds.

Why do atoms form bonds?

• to attain a noble gas configuration

• to increase their mass

• to increase their atomic number

• to attain an alkali metal configuration

Answer explanation

Atoms form bonds to attain a noble gas configuration, which is a stable electron configuration similar to the noble gases in the periodic table.

Some are solids, some are liquids, and some are gases at room temperature.

• ionic compounds

• molecular compounds

Answer explanation

Molecular compounds can exist in different states of matter at room temperature, such as solids, liquids, or gases, making them the correct choice for the given statement.

Molten compound conducts electricity.

• ionic compound

• molecular compound

Answer explanation

Molten compound conducting electricity indicates it is an ionic compound, where ions are free to move and carry charge.

When dissolved in water, the solution is a good conductor of electricity.

• ionic compounds

• molecular compounds

Answer explanation

When dissolved in water, a solution of ionic compounds dissociates into ions, allowing for the conduction of electricity. Molecular compounds do not dissociate into ions and therefore do not conduct electricity in solution.