A chemist determined the boiling point of c8h18 to be 124.1c the actual boiling point is 125.7 what is the percent error

a. 1.27
b. -1.6
c. -1.29
d. -0.013

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.