Which statement best describes the model that shows a compound? a model x shows a compound because there are two different types of atoms. b model x shows a compound because two different atoms are chemically bonded together. c model y shows a compound because there is more than one type of atom. d model y shows a compound because each pair of matching atoms can form a chemical bond.

B

Explanation:

The definition of a compound, is a chemical substance containing two or more elements chemically bonded together.

Model X clearly shows a compound because there are many substances which have two elements chemically bonded to each other.

Model Y does not show a compound because although there are three different atoms, they are not chemically bonded together. This model would most likely represent a solution.

9.6

Explanation:

Volume at room temperature & pressure = no. of moles × 24

No. of moles = mass ÷ mass of 1 mole

= 14.2 ÷ 35.5

= 0.4 moles

Volume = 0.4 × 24 = 9.6