In a lab, you find the mass of a sample of zinc to be 100 g. How many Zn atoms are in 100 g of zinc? Question 2 options:

6.02x1023 atoms

6.02x1025 atoms

1.00 atom

9.21x1023 atoms

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

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.