Select the correct answer. Given: SnO2 2H2 → Sn 2H2O Tin oxide reacts with hydrogen to produce tin and water. How many moles of SnO2 are needed to produce 500. 0 grams of Sn? A. 1. 57 B. 4. 21 C. 634. 8 D. 59,350.

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

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

Joan writes four numbers on the board in standard form, and then she writes their scientific notation