Determine the number of atoms of each element on each side of the following equations and decide which equations are balanced: 3pb(no)3)2)(aq)+2albr3(aq)-3pbr2(s)+2al(no)3)3)(aq)
Determine the number of atoms of each element on each side of the following equations and...
How many grams of PbBr2 will precipitate when excess AlBr3 solution is added to 45.0 mL of 0.745 M Pb(NO3)2 solution? 3Pb(NO3)2(aq) + 2AlBr3(aq) 3PbBr2(s) + 2Al(NO3)3(aq) ______g
State the number of atoms of each element on the reactant and on the product sides of the following equations: a. CH4(g) + 2O2(g) àCO2(g) + 2H2O(g) b. 4P(s) + 5O2(g) à P4O10(s) c. 4NH3(g) + 6NO(g) à 5N2(g) + 6H2O(g) d.6CO2(g) + 6H2O(l) à C3H12O6(aq) + 6O2(g)
Which of the following correctly lists the number of atoms of each element for the compound Fe2(SO4)3? O Fe = 2,5= 3,0 = 12 O Fe = 6, S = 3,0 = 12 O Fe = 2,5 = 1,0 = 12 none of these Fe = 2.S=10=4
Determine the number of atoms of each element in the empirical formula of a compound with the following composition: 54.95 percent C, 8.455 percent H, 36.60 percent O.
5) Determine which element is oxidized and which element is reduced in the following redox reactions. (4) Fe2O3 + CO ® Fe + CO2 Element oxidized ____________________ Element reduced _________________ Cr2O72- + H2C2O4 ® Cr3+ + CO2 Element oxidized ____________________ Element reduced ___________________ 6) Determine the balanced molecular, ionic and net ionic equations for the following single displacement (replacement) reaction. (9) (ME) Al(s) + HCl(aq) ® (IE) (NIE)
Consider an electrochemical cell constructed from the following half cells, linked by an external circuit and by a KCl salt bridge.?• an Al(s) electrode in 1.0 M Al(NO3)3 solution? • a Pb(s) electrode in 1.0 M Pb(NO3)2 solution?The balanced overall (net) cell reaction isA. Pb(s) + Al3+(aq) ? Pb2+(aq) + Al(s).B. 3Pb(s) + 2Al3+(aq) ? 3Pb2+(aq) + 2Al(s).C. 3Pb2+(aq) + 2Al(s) ? 3Pb(s) + 2Al3+(aq).D. Pb2+(aq) + Al(s) ? Pb(s) + Al3+(aq).Can you explain and show steps of how to...
please answer 8-10
Canvas -→ XCIO Question 8 Which element is oxidized in the following reaction? Cr2O72-(aq) + 61"(aq) + 14 H*(aq) + 2 Cr3+ (aq) + 312(s) + 7 H2O(1) eo None of these. This is not a redox reaction OH Ocr Question 9 Balance the following redox reaction, which occurs in acidic solution, using the smallest w Te(s) + NO3(aq) - TeOz(s) + NO(g) unbalanced When this equation is appropriately balanced, what is the coefficient on water and...
6. Consider an electrochemical cell constructed from the following half cells, linked by an external cir- cuit and by a KCl salt bridge. • an Als) electrode in 1.0 MAINO:)solution . a Pb(s) electrode in 1.0 MPb(NO3), solution 1. Which is oxidized? A. AI B. A C. Pь D. Pb? 2. Which is the half reaction at the anode? A. B. C. D. Pb() Pb(aa) +2e A1) Al (aq) +3e. Pb(aq) + 2e →Pb() Al (aa) +3e + Al(s) 3....
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...
Identify the species (atoms/ elements) undergoing oxidation and
reduction in the following equations, assign oxidation numbers to
each, and write balanced net ionic equations.
a) Cu(s)
Cu2+(aq) + 2e-
b) Cl2(aq) + 2e-
Cl-(aq)
c) Cu(s) + Cl2(aq)
Cu2+(aq) + 2Cl-(aq)
d) 4CuO(s) + CH4(g)
4Cu(s) + CO2(g) + 2H2O(l)
e) 2CuSO4(aq) + 4KI(aq)
2CuI (aq) + 2K2SO4(aq) +
I2(aq)
f) Cu2O(s) + Fe(SO4)3 (aq) +
H2SO4(aq)
2CuSO4(aq) + 2FeSO4(aq) +
H2O(l)