I saw two birds land on the roof of our porch. One bird had a twig in its beak. The other bird had a piece of string. Which sentence could be added to the passage to best vary the sentence pattern and affect the fluency? I think they were a male and female robin. Then they flew to the corner of the porch. I sat quietly and watched as they began to build a nest. Without a care, the little carpenters got to work on a nest.

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Which of these best describes an ionic bond?

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml