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3 Written questions
2 Multiple choice questions
 A formula that shows the smallest wholenumber mole ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.
 A compound that has a specific number of water molecules bound to its atoms.
2 True/False questions

Avogadro's number → The number 6.022 1367 × 10^23, which is the number of representative particles in a mole, and can be rounded to three significant digits: 6.02 × 10^23.

molecular formula → A formula that shows the smallest wholenumber mole ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.