Which of the following statements is is false? A. Turning off the heat will cause a hot air balloon to sink.

B. Hot air balloon rise because hot air has less mass than cold air.

C. Hot air balloons rise because hot air is less dense than cold air.

How many moles are contained in 5.6 l of h2 at stp

If a fast moving car making a loud noise approaches and moves past the person what will happen as the distance between the two increases?

A1 forms when an acid is neutralized by a base. 1. salts can be neutral, or in solutions. salts of 2. strong acid–strong base reactions produce solutions with 3. water. salts formed from the neutralization of weak acids or weak 4. bases water. they produce solutions that are acidic or . basic. for example, the ph of a solution at the equivalence point is . greater than for a acid titration. solutions that resist changes in ph are called solutions. the buffer is the amount of acid or base that can be added to a buffer without changing the ph greatly.