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the balanced equation for the reduction of iron ore to the metal using CO is Fe2O3+3CO(g) -> 2Fe+3CO so what is the maximum of
1. 5 answers
2. asked by cheryl
3. 2,363 views
A voltaic cell is constructed with an Ag/Ag+ half-cell and a Pb/Pb2+ half-cell. Measurement shows that thesilver electrode is
1. 5 answers
2. asked by anonymous
3. 8,550 views
The pH of a Ba(OH)2 solution is 10.66. What is the hydroxide concentration? If the solution volume is 125ml, how many grams of
1. 4 answers
2. asked by ralph
3. 3,639 views
The volume of blood in the body of a certain deep-sea diver is 6.00L. Blood cells make up 55% of the blood volume, and the
1. 5 answers
2. asked by vel
3. 3,292 views
What does a negative E cell indicate about a redox reaction?What does is indicate about the reverse reaction?
1. 3 answers
2. asked by anonymous
3. 1,014 views
The voltaic cell reaction NiO2(s)+4H^+(aq)+ 2Ag(s)-->Ni^2+(aq)+2H20(l)+ 2Ag^+ has a E cell= +2.48V. What will the cell potential
1. 4 answers
2. asked by Anonymous
3. 1,724 views
the two half-reactions that are used in the direct methanol fuel cell are shown below.I. 2
1. 3 answers
2. asked by concerned chem student
3. 1,564 views
Which group from the periodic table contains two elements that exhibit +2 and +4 oxidation states? 1A, 2A, 3A, 4A, 5A, 6A OR 7A4
1. 3 answers
2. asked by ISA
3. 1,363 views
A saturated solution of Mg(OH)2 has a pH of 10.52. What is the Hydronium concentration? Whats the hydroxide concentration? Is
1. 4 answers
2. asked by ron
3. 3,691 views
A gas diffuses only 0.5 times as fast as an oxygen molecule at the same temperature. What is the molecular weight of the gas?
1. 7 answers
2. asked by Bob
3. 838 views
What is the molality of a solution that has 80 grams of Benzoic Acid dissolved in 400 mL of ethanol. The density of ethanol is
1. 7 answers
2. asked by MICHELLE
3. 498 views
how many grams of calcium nitrate need to be dissolved in 250 mL of water to form a solution that has a freezing temperature of
1. 2 answers
2. asked by Anonymous
3. 682 views
which of the following has the highest bugger capacity?A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
1. 2 answers
2. asked by ameryss
3. 567 views
An experiment calls for 125 mL of 0.105 M NaCl solution. What mass of NaCl is required? What mass of NaCl would be required for
1. 2 answers
2. asked by Britany
3. 638 views
How many amperes would be needed to produce 60 g of magnesium during the electrolysis of molten MgCl2 in 2 hours?
1. 3 answers
2. asked by Anonymous
3. 792 views
the two half-reactions that are used in the direct methanol fuel cell are shown below.I. 2
1. 2 answers
2. asked by concerned chem student
3. 908 views
for the reaction 2C2H2(g)=>C6H6(l) at 25 C, the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K.
1. 2 answers
2. asked by concerned chem student
3. 689 views
for the reaction 2C2H2(g)=>C6H6(l) at 25 C, the standard enthalpy change is -631 kJ and the standard entropy change is -430 J/K.
1. 3 answers
2. asked by concerned chem student
3. 859 views
Calculate the relative concentrations of o-ethylbenzoic acid (pKa 3.79) and potassium o-ethylbenzoate that are needed to prepare
1. 1 answer
2. asked by amber
3. 357 views
You are instructed to create 800. mL of a 0.69 M phosphate buffer with a pH of 7.6. You have phosphoric acid and the sodium
1. 3 answers
2. asked by Danielle
3. 1,532 views
Titration of 50.0 mL of acetic acid reaches equivalence after delivery of 22.5mL of standardized NaOH 0.21 M.What is the initial
1. 3 answers
2. asked by philip
3. 505 views
What is the value for ∆Soreaction for the following reaction, given the standard entropy values? 2 Al (s) + 3Cl2(g) 2AlCl3(s)a
1. 2 answers
2. asked by gi
3. 746 views
A certain laser uses a gas mixture consisting of 9.0 grams of Hydrogen chloride, 2.0 grams Hydrogen gas, and 165.0 grams of
1. 4 answers
2. asked by angelveb
3. 1,578 views
For the simple decomposition reaction below, rate = k[AB]2 and k = 0.30 L/mols.AB(g) A(g) + B(g) If the initial concentration of
1. 2 answers
2. asked by Anonymous
3. 482 views
Which property of group 2 elements ( magnesium to barium) and their compounds increases with an increasing proton (atomic)
1. 2 answers
2. asked by areebah
3. 584 views
Which property of group 2 elements ( magnesium to barium) and their compounds increases with an increasing proton (atomic)
1. 1 answer
2. asked by areebah
3. 425 views
CaCl2, NaCl, and sugar derived from beet juice are all commonly used in winter to melt ice on streets. At the same molality,
1. 4 answers
2. asked by libby
3. 1,217 views
A certain gas is present in a 11.0 \({\rm L}\) cylinder at 1.0 \({\rm atm}\) pressure. If the pressure is increased to 2.0
1. 2 answers
2. asked by Froyce
3. 1,282 views

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