Kelli drew a diagram to compare cast and imprint fossils.
Which label belongs in the are...
Answers: 3
Chemistry, 21.06.2019 12:50
Which features are shown in the image? check all that apply. folds o anticlines o synclines o normal faults ostrike-slip faults
Answers: 1
Chemistry, 21.06.2019 13:00
Read the given expression. x = number of protons â number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.
Answers: 1
Chemistry, 22.06.2019 05:40
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
Answers: 2
Chemistry, 22.06.2019 10:00
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
English, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11
Geography, 09.04.2020 18:11
Geography, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11
Mathematics, 09.04.2020 18:11