Show the balanced oxidation and reduction half – reactions
UNDERLINE THE REDUCING AGENT and BOX THE OXIDIZING AGENT in the
final balanced equation:
NiO2 (s) + Ag (s) ------>
Ni2+ (aq) + Ag+
(aq) (Acidic Solution)
Given the following balanced equation Ca3P2 + 6
H2O ----> 3 Ca(OH) + 2 PH3. a) What is the
theoretical yield (in grams) of PH3 produced from 125g
each of Ca3P2 and H2O? b) What is
the limiting reagent? c) What is the percent yield if only 38.9g of
PH3 are produced?
Consider the following balanced chemical equation:
C2H5OH(l) +
3O2(g) → 2CO2(g) +
3H2O(l)
a. How many moles of CO2 form when 2.18 moles of
C2H5OH react?
moles CO2
b. How many moles of H2O form from the reaction of
2.18 moles of C2H5OH?
moles H2O
c. How many moles of CO2 form when 2.18 moles of
H2O form?
moles CO2
d. How many molecules of CO2 form when 2.18 moles of
H2O form?
× 10(Click to select)21222324 molecules
CO2
Use the following balanced equation to answer each part below
H3PO4+3NaOH--->Na3PO4+3H2O
If you start the reaction with 100. grams of each reactant, which
reactant is the limiting reactant, and how many grams of the excess
reactant are left over? What mass of sodium phosphate is
produced?
Part 1:
The limiting reactant is
Part 2:
How much of the excess reactant remains?
Part 3:
How many grams of sodium phosphate are produced in this
reaction?
What is oxidized and what is reduced? What is the oxidizing
agent and reducing agent in the equation: Cu (s) + 2NO3- (aq) + 4H+
= Cu2+ + 2NO2 (g) + H2O (l)
Express the equilibrium constant for the combustion of ethanol
in the balanced chemical equation.
C2H5OH(g)+3O2(g)⇌2CO2(g)+3H2O(g)
Express the equilibrium constant for the combustion of ethanol
in the balanced chemical equation.
K=[CO2]2[C2H5OH][O2]3
K=[C2H5OH][O2][CO2][H2O]
K=[CO2][H2O][C2H5OH][O2]
K=[CO2]2[H2O]3[C2H5OH][O2]3
which is the oxidizing agent? which is the reducing agent? which
is being oxidized? which is being reduced in the following
photosynthesis reaction? 6H20+6CO2+light=>C6H12O2+6O2
which is the oxidizing agent? which is the reducing agent? which
is being oxidized? which is being reduced in the following
photosynthesis reaction?
6H20+6CO2=C6H12O2+6O2
In the following reaction, identify the oxidized species,
reduced species, oxidizing agent, and reducing agent.
Be sure to answer all parts.
Ni(s) + Pb2+(aq) →
Ni2+(aq) + Pb(s)
Ni is the
(select)reduced species or oxidized species
and the
(select)oxidizing agent or reducing agent
.
Pb2+ is the
(select)oxidized species or reduced species
and the
(select)reducing agent or oxidizing agent
Phosphine (PH3) decomposes into phosphorus and molecular
hydrogen: 4PH3(g) → P4(g) + 6H2(g) Experiments show that this is a
first-order reaction, with a rate constant of 0.0173 s-1 at 650°C.
Identify each of the following statements about this reaction as
true or false. (Use the drop-down menu and select "True" or "False"
for each. You must get all 4 correct.)
The reaction PH3 → PH2 + H might be the rate-determining step in
the mechanism of this reaction.
The rate...