Homework Answers
1)
Cd(OH)2 is ionic compound of Cd2+ and OH-
So, oxidation state of Cd = charge on ion = +2
Answer: +2
2)
Oxidation number of O = -2
lets the oxidation number of I be x
use:
5* oxidation number (O) + 2* oxidation number (I) = net
charge
5*(-2)+2* x = 0
-10 + 2 * x = 0
x = 5
So oxidation number of I = +5
Answer: +5
C)
lets the oxidation number of Hg be x
use:
2* oxidation number (Hg) = net charge
2* x = +2
0 + 2 * x = +2
x = 1
So oxidation number of Hg = +1
Oxidation number of each element in Hg2+2 is
Hg=+1
Answer: +1
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References Use the References to access important values if needed for this question. Determine the oxidation...
Use the References to access important values if needed for this question. Determine the oxidation state...
Use the References to access important values if needed for this question. Determine the oxidation state for each of the elements below. The oxidation state of mercury in mercury(?) oxide HgO The oxidation state of chlorine in in magnesium chloride MgCl2 The oxidation state of chromium in dichromate ion Cr2072 Submit Answer Retry Entire Group 8 more group attempts remaining
are Use the References to access important values if needed for this question. Use the rules (in order) to assign o...
are Use the References to access important values if needed for this question. Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. I... 2re S... 2rec cadmium hydroxide Ca(OH)2 H - cd - D 0 - S sulfite ion SO,2 C -D ERI tio... copper hydroxide Cu(OH)2 Cu - D 0 - - to... 2red 2re Submit Answer Retry Entire Group 9 more group attempts remaining aration tion tion tion 2re...
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take req Use the References to access important values if needed for this question The molarity...
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Use the References to access important values if needed for this question. A mixture of neon...
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Use the References to access important values if needed for this question. When the following half reaction is balanced under basic conditions, what are the coefficients of the species shown? N2H4+ OH N2 + H2O In the above half reaction, the oxidation state of nitrogen changes from to Submit Answer Retry Entire Group 8 more group attempts remaining
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I'll appreciate your help! [Review Topics] [References] Use the References to access important values if needed...
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[Review Topics] [References] Use the References to access important values if needed for this quest M A solution contains 6.96x10-M potassium sulfite and 1.17x10-2 M ammonium sulfate. Solid silver acetate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula - M B. What is the concentration of silver ion when this precipitation first begins? [Ag)- M eg Submit Answer Retry Entire Group 7 more group attempts remaining...
Use the References to access important values if needed for this question. Write the net ionic...
Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver chloride from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver bromide from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if...
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Review Topics Reterences Use the References to access important values if needed for this question. A mixture of carbon dioxide and xenon gases contains carbon dioxide at a partial pressure of 402 mm Hg and xenon at a partial pressure of 563 mm Hg. What is the mole fraction of each gas in the mixture? Хсо- Ххе Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. A...
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are Use the References to access important values if needed for this question. Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. I... 2re S... 2rec cadmium hydroxide Ca(OH)2 H - cd - D 0 - S sulfite ion SO,2 C -D ERI tio... copper hydroxide Cu(OH)2 Cu - D 0 - - to... 2red 2re Submit Answer Retry Entire Group 9 more group attempts remaining aration tion tion tion 2re...
Use the References to access important values if needed for this question. The volume of water needed to dissolve 0.0661 grams of barium sulfite is L. Assume no volume change upon addition of the solid. Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. The mass of cobalt(II) hydroxide that is dissolved in 225 mL of a saturated solution is grams. Submit Answer Retry Entire Group 7...
take req Use the References to access important values if needed for this question The molarity of an aqueous solution of hydrochloric acid, HCl, is determined by titration with a 4.96 x 102 M potassium hydroxide, KOH, solution. HCI + KOH → KCl + H2O 2req 1f 35.3 ml. of potassum hydroxide are required to neutralize 11.9 ml of the acid, what is the molarity of the hydrochloric acid solution? 2req Molarity Submit Answer Retry Entire Group 9 more group...
Use the References to access important values if needed for this question. A mixture of neon and krypton gases, at a total pressure of 950 mm Hg, contains 4.90 grams of neon and 10.4 grams of krypton. What is the partial pressure of each gas in the mixture? mm Hg PNe - Pkr = mm Hg Submit Answer Retry Entire Group 4 more group attempts remaining [Review Topics] [References) Use the References to access important values if needed for this...
Use the References to access important values if needed for this question. When the following half reaction is balanced under basic conditions, what are the coefficients of the species shown? N2H4+ OH N2 + H2O In the above half reaction, the oxidation state of nitrogen changes from to Submit Answer Retry Entire Group 8 more group attempts remaining
Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. boric acid HzBO3 +1 Cycy itted S 0 sulfur trioxide SO3 cadmium hydroxide H cd 0 Ca(OH)2 CVCCY 9:30 PM [Review Topics] [References] Use the References to access important values if needed for this question. Determine the oxidation state for each of the elements below. The oxidation state of iodine iodic acid in HIO3 is y bromate ion The oxidation state of...
I'll appreciate your help!
[Review Topics] [References] Use the References to access important values if needed for this quest M A solution contains 6.96x10-M potassium sulfite and 1.17x10-2 M ammonium sulfate. Solid silver acetate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula - M B. What is the concentration of silver ion when this precipitation first begins? [Ag)- M eg Submit Answer Retry Entire Group 7 more group attempts remaining...
Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver chloride from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if needed for this question. Write the net ionic equation for the precipitation of silver bromide from aqueous solution: Submit Answer Retry Entire Group 9 more group attempts remaining Use the References to access important values if...
Review Topics Reterences Use the References to access important values if needed for this question. A mixture of carbon dioxide and xenon gases contains carbon dioxide at a partial pressure of 402 mm Hg and xenon at a partial pressure of 563 mm Hg. What is the mole fraction of each gas in the mixture? Хсо- Ххе Submit Answer Retry Entire Group 7 more group attempts remaining Use the References to access important values if needed for this question. A...
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