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Question 33 5 pts 33. A radioactive element X has the half life of 2 weeks....
iz Instructions this file before answering the questions: periodic table 1.docx.pdf = log(R/S) 7 pts Question...
iz Instructions this file before answering the questions: periodic table 1.docx.pdf = log(R/S) 7 pts Question 30 30. Calculate pH of 0.100 M HNO2(aq). K = 2.8 x 10-5 9.01 2.78 6.21 5.21 Open this file before answering the questions: periodic table1.docx.pdf ! (0.5)) = log(R/S) 5 pts Question 33 33. A radioactive element X has the half life of 2 weeks. Calculate the remained amounts of the element X after 18 days if the initial amounts is 18 mg....
Question 4 1 pts A particular radioactive isotope has a half-life of 2.90 weeks. What fraction...
Question 4 1 pts A particular radioactive isotope has a half-life of 2.90 weeks. What fraction of the original sample is left after 101.5 days? 1/8 1/64 1/32 1/16 none of these Next
V Question 5 3.03 pts Suppose a radioactive isotope has a half-life t% = 99.1 hr....
V Question 5 3.03 pts Suppose a radioactive isotope has a half-life t% = 99.1 hr. How long will it take for a sample of the isotope to decay to 3.0% of its original activity? a. 218 hr b. 0.0354hr c. 348 yr d. 297 hr e. 501 hr O a Ob Ос Question 6 3.03 pts A radioactive isotope has a half-life, t% = 27.3 yr How long will it take for a 3.27 mCi sample of this isotope...
The following Lewis diagram represents the valence electron configuration of a main-group element. X• The element...
The following Lewis diagram represents the valence electron configuration of a main-group element. X• The element in period 6 that has this valence electron congfiguration is BA 3A 4A SA 6A 7A He se Na Mg 3B 4B 5B 6B 78 mm 88 18 28 Al Si P S Cl Ar Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Zr Nb Mo Tc Ru RN Pa Rg Cain Sn Sb Te Ba La HT Ta...
17 18 12 13 15 16 5 14 2 3 4 6 7 10 11 1 He 1 H 2 N O F Ne Li Be Na Mg $3 Si CI Ar Al Cr Mn Fe Co Ca Sc Ni Cu Zn 4...
17 18 12 13 15 16 5 14 2 3 4 6 7 10 11 1 He 1 H 2 N O F Ne Li Be Na Mg $3 Si CI Ar Al Cr Mn Fe Co Ca Sc Ni Cu Zn 4 K Ti V Ga Ge As Se Br Kr Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te 5 Rb Xe 6 Cs Ba La WRe Os Ir Au Hg TI...
Question 3 (2 points) In the periodic table pictured below, five columns are highlighted and collectively referred...
Question 3 (2 points) In the periodic table pictured below, five columns are highlighted and collectively referred to as 18 BA TA 2 13 14 15 16 17 2A Не 3A SA 6A 7A 4 5 7 10 2 Li Be C Ne 12 3 Na Mg 11 13 14 15 16 17 18 Ar 3 6 7 78 8 10 11 12 12 38 AI Si P 48 58 68 98 108 118 22 Ti 19 20 21 23...
please solve A to d to get thumps up. Question 11 5 pts Consider a galvanic...
please solve A to d to get thumps up.
Question 11 5 pts Consider a galvanic cell consisting of the following two redox couples: Sn2+ (aq, 0.010 M) + 2e --> Sn (s) E.-0.14 V Cst (aq, 0.010 M) + e --> Cs(s) E--2.92 V a. Write the equation for the half-reaction at the cathode Question 12 5 pts b. Write the equation for the half-reaction at the anode HTML Editor Question 13 6 pts c. Write a shorthand cell...
Question Completion Status: QUESTION 10 A hydrate of magnesium sulfate has a mass of 13.52 g....
Question Completion Status: QUESTION 10 A hydrate of magnesium sulfate has a mass of 13.52 g. This sample is heated until no water remains. The anhydrate has a mass of 6.60 g. Find the formula of the hydrate and the % mass of water. All calculations must be clearly shown. Periodic Table of the Elements 18 H 1.01 2 14 Be 9.01 12 He 13 15 16 17 LDO 10 B C N OF Ne 10.01 12.01 14.01 16.00 2018...
Select the group of the periodic table with a condensed electron configuration of [X]ns 2n-1)d10np5. 2...
Select the group of the periodic table with a condensed electron configuration of [X]ns 2n-1)d10np5. 2 Cayo The Mompanies, Ine. Permon required for production or MAIN-GROUP ELEMENTS Metal (main group) MAIN-GROUP Metals (ansition ELEMENTS Metals (inner transition 1A Metode (0) Normal (18) H 2A 2 1.000 123 JA 4A SA GA 7A He (13) (14) (15) (16) (17) K1003 LI Be 5 6 7 10 6.941 2012 B с N o Ne 10.81 12.01 14/01 16.00 19.00 2018 12 TRANSITION...
could you please use the ksp values from this list question. Solid magnesium hydroxide and solid...
could you please use the ksp values from this list
question. Solid magnesium hydroxide and solid cobalt(II) hydroxide are in equilibrium with a solution containing 1.18x10-2 M magnesium nitrate. Calculate the concentration of cobalt(II) ion present in this solution. [cobalt(II)] = M LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.) COCO, Co(OH), CoS...
iz Instructions this file before answering the questions: periodic table 1.docx.pdf = log(R/S) 7 pts Question 30 30. Calculate pH of 0.100 M HNO2(aq). K = 2.8 x 10-5 9.01 2.78 6.21 5.21 Open this file before answering the questions: periodic table1.docx.pdf ! (0.5)) = log(R/S) 5 pts Question 33 33. A radioactive element X has the half life of 2 weeks. Calculate the remained amounts of the element X after 18 days if the initial amounts is 18 mg....
Question 4 1 pts A particular radioactive isotope has a half-life of 2.90 weeks. What fraction of the original sample is left after 101.5 days? 1/8 1/64 1/32 1/16 none of these Next
V Question 5 3.03 pts Suppose a radioactive isotope has a half-life t% = 99.1 hr. How long will it take for a sample of the isotope to decay to 3.0% of its original activity? a. 218 hr b. 0.0354hr c. 348 yr d. 297 hr e. 501 hr O a Ob Ос Question 6 3.03 pts A radioactive isotope has a half-life, t% = 27.3 yr How long will it take for a 3.27 mCi sample of this isotope...
The following Lewis diagram represents the valence electron configuration of a main-group element. X• The element in period 6 that has this valence electron congfiguration is BA 3A 4A SA 6A 7A He se Na Mg 3B 4B 5B 6B 78 mm 88 18 28 Al Si P S Cl Ar Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Zr Nb Mo Tc Ru RN Pa Rg Cain Sn Sb Te Ba La HT Ta...
17 18 12 13 15 16 5 14 2 3 4 6 7 10 11 1 He 1 H 2 N O F Ne Li Be Na Mg $3 Si CI Ar Al Cr Mn Fe Co Ca Sc Ni Cu Zn 4 K Ti V Ga Ge As Se Br Kr Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te 5 Rb Xe 6 Cs Ba La WRe Os Ir Au Hg TI...
Question 3 (2 points) In the periodic table pictured below, five columns are highlighted and collectively referred to as 18 BA TA 2 13 14 15 16 17 2A Не 3A SA 6A 7A 4 5 7 10 2 Li Be C Ne 12 3 Na Mg 11 13 14 15 16 17 18 Ar 3 6 7 78 8 10 11 12 12 38 AI Si P 48 58 68 98 108 118 22 Ti 19 20 21 23...
please solve A to d to get thumps up.
Question 11 5 pts Consider a galvanic cell consisting of the following two redox couples: Sn2+ (aq, 0.010 M) + 2e --> Sn (s) E.-0.14 V Cst (aq, 0.010 M) + e --> Cs(s) E--2.92 V a. Write the equation for the half-reaction at the cathode Question 12 5 pts b. Write the equation for the half-reaction at the anode HTML Editor Question 13 6 pts c. Write a shorthand cell...
Question Completion Status: QUESTION 10 A hydrate of magnesium sulfate has a mass of 13.52 g. This sample is heated until no water remains. The anhydrate has a mass of 6.60 g. Find the formula of the hydrate and the % mass of water. All calculations must be clearly shown. Periodic Table of the Elements 18 H 1.01 2 14 Be 9.01 12 He 13 15 16 17 LDO 10 B C N OF Ne 10.01 12.01 14.01 16.00 2018...
Select the group of the periodic table with a condensed electron configuration of [X]ns 2n-1)d10np5. 2 Cayo The Mompanies, Ine. Permon required for production or MAIN-GROUP ELEMENTS Metal (main group) MAIN-GROUP Metals (ansition ELEMENTS Metals (inner transition 1A Metode (0) Normal (18) H 2A 2 1.000 123 JA 4A SA GA 7A He (13) (14) (15) (16) (17) K1003 LI Be 5 6 7 10 6.941 2012 B с N o Ne 10.81 12.01 14/01 16.00 19.00 2018 12 TRANSITION...
could you please use the ksp values from this list
question. Solid magnesium hydroxide and solid cobalt(II) hydroxide are in equilibrium with a solution containing 1.18x10-2 M magnesium nitrate. Calculate the concentration of cobalt(II) ion present in this solution. [cobalt(II)] = M LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.) COCO, Co(OH), CoS...
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