Senior Spring Chemistry Final 2023

The formula for Strontium oxide is

Laughing gas or NO₂ is often used by dentist when surgery is needed to remove your teeth. The name for NO₂ is...

• nitrate

• nitrite

• nitrogen dioxide

• nitrogen II oxide

Fill-in-the-blank: An ion that has a positive charge is called _____. [Spelling counts]

In one of your labs, you added Calcium to water. The solution turned pink. The product you formed was calcium hydroxide. Calcium hydroxide is

• CaOH₂

• Ca(OH)₂

• CaH₂

• CaOH

For the n=1 energy level, the orbital(s) is/are ____.

• S only

• S & P only

• S, P, & d only

• all the selections

The electron configuration for oxygen is

• 1s², 2s², 2p⁴

• 1s², 2s², 2p⁶, 3s²

• [Ne] 3s², 3p⁴

• [Ar] 4s², 4p⁴

Which element has this electron configuration, 1s², 2s², 2p⁶, 3s² ?

• Oxygen

• Sodium

• Magnesium

• Calcium

• Strontium

According to the Octet Rule, atoms or elements are stable if they have this many electrons in the outer ring/shell.

• 14

• 2

• 6

• 8

• 10

Which suborbital is this image?

• s

• p

• d

• f

Which suborbital is this image?

• s

• p

• d

• f