When balanced, which equations would have the coefficient 3 in front of the any of the reactants? check all that apply. a. agbr + gapo4 → ag3po4 +gabr3 b. h2so4 + b(oh)3 → b2(so4)3 + h2o c. fe + agno3 → fe(no3)2 + ag d. c2h4o2 + o2 → co2 +h2o

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?