A beaker contains dissolved NH4Cl, and another beaker contains dissolved Pb(NO3)2. When the two solutions are mixed together, a precipitate forms. What are the spectator ions? (Coefficients are not needed.)

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

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?