Contraction of the diaphragm results in raising of the diaphragm and expiration of air.

Which of the following ionic solids would have the highest melting point?

Identify the compound with atoms that have an incomplete octet.

Which is stronger, Earth’s pull on the Moon, or the Moon’s pull on Earth?

Use Lewis theory to determine the chemical formula for the compound formed between Ba and F.

Which of the following has the bonds correctly arranged in order of increasing polarity?

The hybridization of the carbon atom labeled x in the molecule below is ________.

Of the bonds C-N, CN, and C≡N, the C-N bond is ________.

In counting the electron groups around the central atom in VSEPR theory, a ________ is not included.

Place the following elements in order of increasing electronegativity. Ba C Sc