Which of the following gases is not found in earth’s atmosphere? a. oxygen c. hydrogen b. nitrogen d. all of the above are in the atmosphere

If the same amount of cacl2 is added to equal volumes of water and maple syrup, which will have the higher temperature?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

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: