Chemistry, 30.06.2019 23:30 sssavannahh
21. list 3 indicators of a chemical change. a. b. c. 22. check the following problem for errors. if you find an error, identify it, tell why it is an error and correct the error solving the problem correctly. convert 0.45 g zinc hydroxide to moles. (hint: there are errors) 0.65 g znoh 82.41 mol = 3.22 x 10 25 mol 6.02x1023 g 23. what is an ion? explain how ions form. distinguish between a cation and an anion. be sure to use at least 3 to 4 complete content related sentences in your explanation. 24. write the symbol for the ion formed when each element gains electrons and attains a noble-gas electron configuration. a. br b. h c. se 25. name each of the compounds. there are ionic, covalent and acid/base compounds in the list. a. n2h4 b. pi3 c. lioh
Answers: 1
Chemistry, 22.06.2019 02:10
26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .
Answers: 3
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 12:20
Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?
Answers: 3
Chemistry, 22.06.2019 16:40
Identify the lewis acid in this balanced equation: ag+ + 2nh3 -> ag(nh3)2+a. ag+b. nh3c. ag(nh3)2+
Answers: 1
21. list 3 indicators of a chemical change. a. b. c. 22. check the following problem for errors....
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