Which statement must be true about a chemical system at equilibrium?
(1) the forward and reverse reactions stop.
(2) the concentration of reactants and products are equal.
(3) the rate of the forward reaction is equal to the rate of the reverse reaction.
(4) the number of moles of reactants is equal to the number of moles of product.

Which item is most likely part of the safety contract

How many liters of oxygen gas, at standardtemperature and pressure, will react with 35.8 grams ofiron metal? 4 fe (s) + 3 o2 (g) → 2 fe2o3 (s)

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s