True or false and explain: the greater the distance between two objects, the greater the force of gravity between the two objects.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

The data below were determined for the reaction shown below. s2o82– + 3i – (aq) → 2so42– + i3– expt. # [s2o82–] (m) [i –] (m) initial rate 1 0.038 0.060 1.4 × 10 – 5 m/s 2 0.076 0.060 2.8 × 10 – 5 m/s 3 0.076 0.030 1.4 × 10 – 5 m/s the rate law for this reaction must be: