Which two reactions are faster than the others? I A. Black powder in fireworks burns explosively to produce gases and
white light.
B. Iron metal reacts with oxygen in air to form rust.
C. Silver tarnishes in air that contains hydrogen sulfide.
D. Lead nitrate and potassium iodide react to form a yellow
precipitate.
SUBMIT

Are aliens real? justify you’re answer.

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat