1. Which one of the following is classified as a compound? a)H2(g) b)CO2(g) c) C12 (8) d) 12 (g)

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

What is the correct lewis dot structure for arsenic?

Amodel of an atom is shown below. which element is represented by this model of an atom? boron, carbon, neon, or sodium?