(a) Use 0. 840 M for hydrogen peroxide concentration (for other reactants, use the concentrations from your laboratory notebook, each reaction mixture has the same volume of reagents as you have done in your laboratory work), and calculate the order of each reactant from the following data. Show work for full credit: Reaction Mixture Time (s) Temperature (C)
1 185 22. 0
2 389 22. 0
3 99 22. 0
4 205 22. 0
5 88 32. 0
6 44 22. 0
(b) Calculate the specific rate constant k for reaction mixture 1.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.