Musical Chemistry

Here I come, with another Rebus.
This is rather easy.

Hint

Almost Everywhere, but We Don't Care.

• ...I Care, usually :( – Khale_Kitha Mar 9 '16 at 13:28
• NB it doesn't work in a British accent. – Peter Taylor Mar 9 '16 at 13:44
• @PeterTaylor I assume you're referring to the fourth item? It doesn't work with an American accent either. – question_asker Mar 9 '16 at 15:09
• @question_asker, the second, third, and fourth items. – Peter Taylor Mar 9 '16 at 15:24
• @PeterTaylor Same. Though the second and third items aren't words in the same way the fourth is - we're only basing our pronunciation of those on the way we pronounce the full word. If I saw those on their own, I would definitely say them in a way that worked with this puzzle. – question_asker Mar 9 '16 at 15:27

• @question_asker the power outlet represents the : I think. Because of the 2 holes. – Marius Mar 9 '16 at 12:57