Determine whether each redox reaction occurs spontaneously in the forward direction.
a. ni(s) + zn2 + (aq) ¡ ni2 + (aq) + zn(s)
b. ni(s) + pb2 + (aq) ¡ ni2 + (aq) + pb(s)
c. al(s) + 3 ag+ (aq) ¡ al3 + (aq) + 3 ag(s)
d. pb(s) + mn2 + (aq) ¡ pb2 + (aq) + mn(s)

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

The pressure in a fluid is affected by which characteristics of that fluid

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass