A new element, X, is discovered and is found to have 3 isotopes: X-130, X-132, and X-134. 50% of all atoms of element X are X-130; 40% are X-132; and the remaining 10% are X-134. What is the atomic mass of this new element? (Enter the number only and keep 1 decimal, as in 000.0 )

The first element on the periodic table of elements is carbon. a. true b. false

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

What is the solubility of substance?