A) Mg + 2HCl ---> H2 + MgCl2
B) 4Al +3 O2 -----> 2Al2O3
C) Fe2O3 + 3H2O ----> 2Fe(OH)3
D) Ca(OH)2 + 2HNO3 -----> Ca(NO3)2 + 2H2O
5)
a. Zn + CuBr2 -----> ZnBr2 + Cu
b. H2 + Cl2 ----> 2HCl
c. MgCO3 -----> MgO + CO2
D. KCl + AgNO3 -----> AgCl + KNO3
Balance the following equations a. Mg(s) + _ Hel (ag) -> H2(g) + Mg Clz (ng)...
Balance each of the following skeletal equations: (a) Mg(s)+ O2(g) (b) Zn(s)+ AgNO3(aq) Zn(NO3)2(aq) + Ag(s) (c) C2H2(g)+O2(g) CO2(g) + H20(g) 5.38 MgO(s) odm(d) C12H22O11(s) +KCIO3(I) Constder the foll CO2(g) +H20(g) + KCI(s)
Select the Redox Reactions: A) Mg + 2H+--> Mg2+ +H2(g) B) K2CO3(aq) + Sr(NO3)2(aq)--> SrCO3(s) + 2KNO3(aq) C) 2OH- + 2ClO-2 --> ClO2- + ClO3- + H2O D) H+ + OH- --> H2O E) KSCN (aq) + Fe(NO3)3(aq) --> FeSCN2+(aq) + KNO3 (aq) + 2NO3- (aq) F) AgCl(s) +2NH3(aq) --> Ag(NH3)2+ (aq) +Cl- (aq)
Determine the value of AG for the following reaction: Fe2O3 (s) + 3 H2(g) → 2 Fe(s) + 3 H2O(g) Fe2O3(s) H2(g) Fe(s) H2O(g) AHf (kJ/mol) -824.2 0 0 -241.8 Sº (J/K mol) 87.4 130.6 27.3 188.8
4.) (20%) Which one of the following is an acid base reaction? a) C(s) + O2(g) → CO2(g) b) 2 HCl(aq) + Ca(OH)2(aq) + 2 H2O(1) + CaCl2(aq) c) Fe(s) + 2 AgNO3(aq) — 2 Ag(s) + Fe(NO3)2(aq) d) MgSO4(aq) + Ba(NO3)2(aq) + Mg(NO3)2(aq) + BaSO4(s) e) None of the above are acid base reactions.
Which of the following is easiest to oxidize? a. H2(g) b. Zn(s) c. Ag(s) d. H2O(l) e. Cu(s) The half?reaction occurring at the cathode in the balanced reaction shown below is ________. 3MnO4 ? (aq) + 24H+ (aq) + 5Fe (s) ? 3Mn2+ (aq) + 5Fe3+ (aq) + 12H2O (l) a. MnO4 ? (aq) + 8H+ (aq) + 5e? ? Mn2+ (aq) + 4H2O (l) b. 2MnO4 ? (aq) + 12H+ (aq) + 6e? ? 2Mn2+ (aq) + 3H2O (l) c. Fe (s) ? Fe3+ (aq) + 3e? d. Fe (s) ? Fe2+ (aq) + 2e? e. Fe2+ (aq) ? Fe3+ (aq) + e can you explain in detail? I have no clue what is going...
(d) (3 pts) is most active and Ag is least active. Complete the following table indicating which reaction will not occur (Yes) or not occur (NO) in the lab Reaction Consider the activity series Ca> Mg> Al> Zn >Cd > Sn> Pb> H> Ag where Ca Yes? NO? Cd(s) + H2O) SnCl2(aq) +Ca(s) MgS(s) +Ca(s) > CdO(s) +H2(g) >Sn(s)+ CaCl2(aq) >CaS(s) + Mg(s)
2. Balance the following equations. Identify each of the following reactions as belonging to one of the following categories: precipitation, acid-base (neutralization), or oxidation- reduction (8 points) a. H2SO4 (aq) + Fe(s) → FeSO4(aq) + H2(g) b. Ca(OH)2(aq) +HNO3(aq) → Ca(NO3)2(aq) + H2O(1) c.2 Fe(s) +3 Cl2(g) +2 FeCl3(s) d. AgNO3(aq) + CaCl2(aq) → AgCl(s) + Ca(NO3)2(aq) 3. Write the balanced molecular and net ionic equations for each of the following reactions. Identify the spectator ions. (6 points) a. Solid...
balance each of the following equations Fall 209 CHM 105.004 Exam 2 Answer all the question in order in the blue book. Plesse leave at least two lines between question and show your calculations for full credit. N-6.023 x 10” particles per mol: R 0.08.205 L-atm/(mol-K) b) Al2(PO4) 3 e) CuSO4-5 H2O 1. Calculate the molar masses of: a) (NH4)2SO4 2. Calculate: a) the number of atoms of calcium in a 10.50 g sample of the metal b) the mass...
6. Based on the activity series, which single displacement reaction will not occur? Mg(s) + 2HCl(aq) - MgCl2 (aq) + H2(g) SnBr2 (aq) + Zn (s) --- ZnBrz (aq) + Sn (s) Mg(s) + ZnCl2 (aq) --- MgCl, (aq) + Zn (s) Zn (s) + 2HNO, (aq) + 2AGNO, (aq) + H2 (8) SnBrz (aq) + Cu(s) -- CuBr2 (aq) + Sn (s) Question 7 1 pts 7. Based on the definition of oxidation and reduction, which of the following...
7.40 Balance each of the following chemical equations: a. Zn(s) + HNO3(aq) H(g) + Zn(NO3)2(aq) b. Al(s) + H2SO4(aq) → H2(g) + Alz(SO2)3(aq) c. K SO,(aq) + BaCl(aq) → BaSO 9) + KCl(aq) d. CaCO3(s) — — Cao(s) + CO2(g) a. Zn(s) + HNO3(aq) —H2(g) + Zn(NO3)2(aq) b. Al(s) + H2SO4(aq) —> H2(g) + Al(SO4)3(aq) I