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

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive