Covalent Compounds and Their Formulas

What is the key difference between covalent and ionic compounds?

• Covalent compounds involve metals, while ionic compounds involve nonmetals.

• Covalent compounds are always gases, while ionic compounds are always solids.

• Covalent compounds involve sharing electrons, while ionic compounds involve transferring electrons.

• Covalent compounds are formed by transferring electrons, while ionic compounds are formed by sharing electrons.

Which of the following is true about binary covalent compounds?

• They are made of one metal and one nonmetal.

• They are made of two different nonmetals.

• They always contain a metal.

• They do not use prefixes in their names.

What prefix is used to indicate three atoms in a covalent compound?

• Tetra

• Tri

• Di

• Mono

How would you write the formula for carbon tetrachloride?

• CCl

• CCl4

• CCl2

• CCl3

What is a common mistake to avoid when writing formulas for covalent compounds?

• Writing the elements in alphabetical order.

• Using the prefix 'mono' for the first element when there is only one atom.

• Using numbers instead of prefixes.

• Using prefixes for ionic compounds.

What is the formula for dinitrogen pentoxide?

• N₂O₅

• N₂O₆

• N₂O₃

• N₂O₄

What is the name of XeF₆

• Xenon octafluoride
• Xenon tetrafluoride
• Xenon difluoride
• Xenon hexafluoride