Question

When does the chemical formula (formula unit) of an ionic compound indicate about the structures that make up the compound?

A) Smallest natural radio of ions present

B) The amount of charge on each ion present

C) The total number of each ion present

D)The number of electrons each ion lost or gained

A molecule with multiple polar bonds:

A) will always be polar

B) will never be polar

C) may or may not be polar based on shape

What kind of compounds are liquid at room temperature?

A) Ionic

B) covalent (molecular)

C) could be either ionic or covalent

Answer 1

What does the chemical formula(formula units) of an ionic compound indicate about the structures that make up the compound? - A) Smallest natural ratio of ions present. Generally speaking, ionic compounds are represented by formula units, just as molecular compounds are represented by a molecular formula. This formula unit gives the smallest whole number ratio that the ions in the ionic compound are present in, as this makes gathering information about the compound easy.

A molecule with multiple polar bonds - C) may or may not be polar depending on the shape. This is because many a times, the symmetry of the molecule in question can lead to the polarities balancing out, resulting in a neutral molecule.

What kind of compounds are liquid at room temperature - B) covalent(molecular). This is because the force of attraction in covalent bonds is less. This means that a lower temperature is enough to break these bonds, resulting in soft solids, liquids, and gases. An ionic compound has a very strong force of attraction, and thus, the temperature needs to be much higher for these bonds ton be broken.

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