Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appearance of products: a. h2(g) + i2(g) → 2hi(g) b. 5br–(aq) + bro3–(aq) + 6h+(aq) → 3br2(aq) + 3h2o(l)

Evaluate this exponential expression,8. (2 + 3)2 – 42

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car