Gold is a very soft metal that can be hammered into extremely thin sheets known as gold leaf. if a 1.78 g piece of gold is hammered into a sheet whose area is 48.4 ft2, what is the average thickness of the sheet? (the density of gold is 19.32 g cm-3.) 9.917*10^-5 cm

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Two atoms interact with each other as shown by the equation. complete the equation by filling in the missing parts. 1 2 3 4 5 h he li

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1