Aluminum metal reacts with iron (II) oxide powder to produce aluminum oxide solid and iron metal.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

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

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: