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QUESTION 16 Compute the oxidation number of the chromium in Na2SO3 Show transcribed image text
QUESTION 16 Compute the oxidation number of the chromium in Na2SO3 QUESTION 14 Nitric acid is a strong acid and dissociates completely when dissolved in water. True False QUESTION 3 A sample of a gas with a volume of 376 mL at 25.3°C and 135 kPa is compressed to 323 mL at a pressure of 483 kpa. Calculate the new temperature in °C of this gas. What is the hydronium ion concentration of pure water at 25°C? 1.0 × 10...
QUESTION 25 What is the oxidation number for the chromium atom in the following molecules? K2Cr204: Cro32
In which species does the element sulfur have the lowest oxidation number? H2SO4 OS2 OSO Na2SO3 OS
What is the oxidation number of chromium in Fe2(Cr207)3? Multiple Choice
QUESTION 15 The oxidation number of chromium in sodium chromite, KCrO2, is O a.–2. ob.+1. Oc+3. Od. +2. e. 1. QUESTION 16 Which of the following is a weak acid in aqueous solution? a. HBr b. HI oc HNO 2 d. HCIO 4 e. H2SO4
What is the oxidation number of chromium in Fe2(Cr207)3? Multiple Choice Ο Ο Ο Ο
Question 15 In C4H8 the number of pi bonds is
When a substance is oxidized, it electrons and its oxidation number When a substance is reduced, it electrons and its oxidation number Determine the oxidation number of each clement in: HCIO_4 C-2O_4^2- In each of the following redox reactions, determine which element is oxidized and which is reduced. Cl_2 (aq) + 2 I (aq) rightarrow I_2 (aq) + 2 Cl' (aq) Fe_2O_3 (s) + 3 CO (g)rightarrow 2 Fe (s) + 3 CO_2 (g) Write balanced molecular and net ionic...
о b. (16 Pts) ГОН NH,
Question 17 Write a balanced chemical equation for the oxidation of chromium metal with nitric acid. Assume the reaction products are Cr" and NH 30H*(aq) + 3NO; - (aq) + 8Cr(s) - 3NH, (aq) + SCP-(aq) +9H 0(1) H+ (aq) + NO, (aq) + Cr(s) -- NH4+ (aq) + Cr(aq) 10H"(aq) + NO3(aq) + 3C+(3) -- NH4+(aq) + 3Cr"(aq) + 3H-01 4H" (aq) + NO; Taq) - Cr(s) - NH(aq) + Craq) 10H"(aq) + NO3- (aq) + Cr(s) - NH....