AgNO3(aq) + NaCl(aq) → AgCl(s) +
NaNO3(aq)
The concentration of NaCl is 0.118 M at the start of the reaction,
and 0.0900 M after 118 seconds. The initial concentrations of the
products are zero.
The average rate of reaction (in M/min) over this time period-
1.42×10-2 M/min
What is the average rate of change (in M/min) of NaCl in the
first 118 seconds and what is the average rate of change (in M/min)
of NaNO3 in the first 118 seconds?...
use oxidation numbers to decide which of the following are redox
reactions. for all redox reactions identify the oxidizing agent and
the reducing agent. a) SiO2(S)+4HF(g)--->SiF4(g)+2H2O(l)
b)2C2H6(g)+7O2--->4CO2(g)+6H2O(g) c)
5CO(G)+l2O5(s)--->5CO2(g)+l2(s)
Which of the following
are redox reactions ? Explain your answer on the basis of changes
in oxidation number.
1. CuSO4 + 2NaOH → Cu(OH) 2 + Na
2SO4
2. 2Al +
3MgSO4 → 3Mg + Al
2(SO4)3
3.
2(NH4)3PO4 +
3Ba(NO3)2 → Ba
3(PO4)2 +
6NH4NO3
4. 2HNO3 +
3H3AsO3 → 2NO + 3H
3AsO4 + H2O
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For the following
reaction, 4.57 g of silver nitrate are mixed with excess copper.
The reaction yields 2.29 gram of copper(II)...
Which of the following redox reactions do you expect to occur
spontaneously in the forward direction?
Check all that apply.
Cd2+(aq)+Co(s)→Co2+(aq)+Cd(s)
Pb(s)+Mn2+(aq)→Pb2+(aq)+Mn(s)
Al(s)+3Ag+(aq)→Al3+(aq)+3Ag(s)
Ni(s)+Pb2+(aq)→Ni2+(aq)+Pb(s)
Which of the following redox reactions do you expect to occur
spontaneously in the reverse direction? pick all that apply
2Al(s)+3Pb2+(aq)→2Al3+(aq)+3Pb(s)
Fe(s)+Mn2+(aq)→Fe2+(aq)+Mn(s)
2Cu+(aq)+Co(s)→2Cu(s)+Co2+(s)
Ca2+(aq)+Zn(s)→Ca(s)+Zn2+(aq)
Which of the following redox reactions do you expect to occur
spontaneously in the forward direction?
Check all that apply.
Al(s)+3Ag+(aq)→Al3+(aq)+3Ag(s)
Cd2+(aq)+Co(s)→Co2+(aq)+Cd(s)
Ni(s)+Pb2+(aq)→Ni2+(aq)+Pb(s)
Pb(s)+Mn2+(aq)→Pb2+(aq)+Mn(s)
Which of the following redox reactions do you expect to occur
spontaneously in the reverse direction?
(Hint: The reactions are
occurring under standard conditions (1 M for the aqueous
ions).)
Check all that apply.
2Ag+(aq)+Ni(s) ? 2Ag(s)+Ni2+(aq)
Ca2+(aq)+Zn(s) ? Ca(s)+Zn2+(aq)
2Al(s)+3Pb2+(aq) ? 2Al3+(aq)+3Pb(s)
Fe(s)+Cr3+(aq) ? Fe3+(aq)+Cr(s)
4.
Which reactions are redox reactions?
Choose at least one answer.
A. hydrochloric acid
reacting with nickel metal to form hydrogen gas and aqueous
nickel(II) chloride
B. sodium bromide
reacting with chlorine to form sodium chloride and bromine
C. sodium hydroxide
reacting with aluminum chloride to form solid aluminum hydroxide
and sodium chloride
D. sodium hydroxide
reacting with hydrochloric acid to form water and sodium
chloride
E. sodium hydroxide
reacting with potassium to form potassium hydroxide and sodium
F. acetic...