Which of the following has the strongest hydrogen bonds? Group of answer choices

C2H6

HF

CH4

H2Se

The pressure in a fluid is affected by which characteristics of that fluid

Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?