Why has the canals in Venice Italy cleared up during this time?

You measure the absorbance of each solution (at λmax = 524 nm) and obtain the following results: Solution Absorbance Stock solution 3.04 Solution #1 0.494 Solution #2 0.338 Molarities Stock: 8.1*10-5M Solution 1: 1.338*10-5M Solution 2: 9.

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) ? C2H2 (g); ? G? f=209.2 kJ/mol B. C (s) + O2 (g) ? CO2 (g); ? G? f=?394.4 kJ/mol C.

What's the formula unit for magnesium and sulfur?

Balance the following chemical equation by providing the correct coefficients. [?]Pb (NO3) 2 + [?] Na2Cr04 [?]PbCrO4 + [?]NaNO3

Which food item contains a lot of processed simple sugars? fruit cookie potato pasta

Each enzyme has an optimal temperature and pH that it works best in. If enzyme ABC works best at pH 7, but ABC is in a cell with a pH of 9, will it catalyze more or less reactions?

What is the molarity of a solution that contains 5.0 moles of solute in 2.0 liters of solution?

Area immediately surrounding a hazardous material incident which extends far enough to protect personnel outside the zone from contamination.

What is the smallest part of a tree that can do all the things needed for life?

What are solid mixtures in a avarage class