Jiya and Teena performed the following experiment. Jiya placed an iron nail in copper sulphate solution in test tube (a) whereas Teena placed a copper nail in iron sulphate solution in test tube (b). Write the observations of the two experiments. Represent both the reactions by means of chemical equations
Answers: 2
Chemistry, 22.06.2019 12:20
Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.
Answers: 3
Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.
Answers: 1
Chemistry, 23.06.2019 07:00
Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.
Answers: 2
Chemistry, 23.06.2019 10:20
Determine the mass of the object below with accuracy and to the correct degree of precision. a. 324.2 g b. 324 g c. 324.30 g d. 324.25 g
Answers: 3
Jiya and Teena performed the following experiment. Jiya placed an iron nail in copper sulphate solut...
Mathematics, 07.04.2020 06:12
Mathematics, 07.04.2020 06:12
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Mathematics, 07.04.2020 06:12
Mathematics, 07.04.2020 06:12
Mathematics, 07.04.2020 06:12
Mathematics, 07.04.2020 06:12
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