What evidence do scientists have that Earth has been hit by large objects, like asteroids, in the past? Check all that apply.

A. layer of volcanic ash
B. layer of burned organic matter
C. change in average global temperature
D. mass extinctions
E. earthquake activity

All motion is caused by force? true or false

11) burning your hand when accidentally touching a hot plate is an example of which heat transfer? a. conduction b. convection c. radiation d. none of these

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: