Question

Write net equations for the spontaneous redox reactions that occur during the following or none if there is no extensive reaction. Instructions: Enter all substances in the order listed at the top of the column. Use a carot to indicate a superscript, but do nothing for subscripts. Use a hyphen + greater than (->) for yields. Click on the eye symbol to check your formatting. Reactants Rxn: Ox(1) + Red(2) + other -> Red(1) + Ox(2) + other

Manganese metal is added to a MgSO4 solution: NONE

Chromium metal is placed in hydrochloric acid:

A gold wire is added to nitric acid:

Chromium metal is added to water:

A silver wire is placed into an acidified solution of KMnO4:

Answer 1

Oxidation is a process in which one or more electrons are lost. Reduction is a press in which one or moree election is gained. is Reactions in which both oxidation and 9cedučliow takes place témultaneously is knocon as Redox reactions example: oxidation ( loss of 20) In(s) + Cu?* (ag.) – Zurlag) + Cu(s). Reduction (gain of 20) Oxidation number is the residual charge which an alon appears to have when all other atoms are removed from it as ions example: KMnO4 in 1+x+ (1x 6-2)) = 0 41 x -2 x-7-0 Oxidation no. of. x= 7 4 Mn is I

The aēlisely sorcies is a progression of a metals arranged in the order of highest reactivity to lowest reactivity Metals at the higher posicion can displace a metal at the Lowser gosition from thicer compound activity series Reactively decreases Reactivity increases

Nora lets approach the gis en equalioso & Mr & Mase no reaction Mn is viliated loever in the activity Series it cannot displace Mg from Mill. Hence, no reaction takes place. oxidation (loss of 26 ) C(s) + 2HCl(a let, + 49 (2) By:(1) ex(2) Red (1) Red (2) ax (1) Reduction (green of 10:) This is a case of simple Kubililation Seraction. Siire, chronium is mone active than 4, it dissolves in hydrochloric acid forming Grill, and liberating Hz.

Au (s) + HND, W. ---> no reaction As An is situated at the lower end of actively wiries, it is quite sureactive and a thus doernot feeact wilt conc. HNO, OH any olher acid foss that malter. It however dissolves in aqua regia solution (mixture of c. HNO & c. Hll taken in 1:3 ratio) forening Aultz. HNO3 + 3HCL --> Noel + 24,0 + 2[4] apart) (3part) aqua negia. Aa + 3 [a] Auctz C(s) + 40 no reaction Even though chromium is quite reactive, Chronium metal doesuot react with water at room temperature

oy A silver wire is placed into an acidified Kuiba Wolution - Redox reaction occurs oxidation ( loss of le) 10 Ag(s) + 2 kind + 16Ht 2012+ + 1019+ + 24 + 8460 Red (2) ax (1) Red(1) Ox (2) reduction (gain H* represents the acidified solution. Y Ho SO4 is used as acid then, 10Ag + 2 Kong +8412 60 260g + 5A, 50g + Kolon + 84,0.