Use the drop-down menus to complete each of the sentences. Isotopes behave similarly in
involve only a rearrangement of electrons, and do not
involve changes in protons or neutrons.
In
a large amount of energy is released or absorbed.
New elements can be formed as a result of
Exothermic and endothermic reactions can occur during
DONE

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

Stage in which a typical star has completely stopped fusion

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness