Asolution is prepared by dissolving 150 ml of ethanol in enough water to make a 500 ml solution. what is the percent by volume of ethanol in the solution?

10%

30%

70%

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number

Areaction in which products can react to re-form reactants is

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid