Understanding Chemical Formulas from Diagrams

What is the key difference between ionic and covalent compounds that affects how we deduce their formulas?

• The type of elements involved

• The size of the compound

• The color of the compound

• The temperature at which they form

When determining the molecular formula of a covalent compound, what is the primary step?

• Counting the number of bonds

• Counting the number of each type of atom

• Identifying the compound's color

• Measuring the compound's mass

Why can't we simply count the number of atoms in an ionic compound to determine its formula?

• Because ionic compounds are too small

• Because ionic compounds have a giant lattice structure

• Because ionic compounds are always liquids

• Because ionic compounds change color

In the example of sodium chloride, what is the ratio of sodium ions to chloride ions?

• 2:1

• 1:2

• 1:1

• 3:1

For the compound with aluminium and fluorine, what is the simplest ratio of aluminium to fluorine?

• 1:3

• 1:2

• 2:3

• 1:1