HourglassMage
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Questions Asked

HourglassMage:
Group Title
Ung the table below, what is the change in enthalpy for the following reaction?
I2 (s) > I2 (g)
Substance ΔHf(kJ/mol)
…
 updated 17 hours ago
 14 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
How many milliliters of a 0.100 M NaOH solution are required to neutralize 25.0 milliliters of 0.150 M HCl?
Answer
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 updated 2 days ago
 34 replies
 3 Medals
Mathematics

HourglassMage:
Group Title
Which atoms have undergone oxidation and reduction?
2HNO3 + S > 2NO + H2SO4
 updated 2 days ago
 2 replies
 No Medals Yet
Mathematics

HourglassMage:
Group Title
In the reaction between the strong acid (HCl) and the strong base (NaOH), which of the ions listed below is a spectator ion?
Answer
…
 updated 2 days ago
 11 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
What is the boiling point of a 0.75molal solution of a nonvolatile nonelectrolyte solute in water? Kb for water = 0.52 degrees C/ molal.
…
 updated 2 days ago
 11 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
What volume of 1.25 M sodium hydroxide (NaOH) solution can be prepared using 60.0 g of sodium hydroxide? (The mass of one mole of NaOH is …
 updated 2 days ago
 7 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
Evaluate [6  (6  2(3  6) + 3)] + 7
The answer is 2. How do I get that?
 updated 3 days ago
 12 replies
 4 Medals
Mathematics

HourglassMage:
Group Title
How many electrons should be added to balance the following oxidation halfreaction, H2O2 arrow 2 H+ + O2?
Answer
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 updated 7 days ago
 8 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
In the reaction, C + 2 S arrow CS2, the substance that is the oxidizing agent is:
Answer
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 updated 7 days ago
 5 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
In the reaction, Zn (s) + Fe+2 (aq) arrow Zn+2 (aq) + Fe (s), the oxidizing agent is:
Answer
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 updated 7 days ago
 5 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
t town meetings only the elders of the community would be allowed to speak.
Answer True False
 updated 8 days ago
 13 replies
 No Medals Yet
Mathematics

HourglassMage:
Group Title
Although counties are the largest unit of local government, they are not always the most influential.
Answer True False
 updated 8 days ago
 1 reply
 No Medals Yet
Mathematics

HourglassMage:
Group Title
FeCI + Cu > Fe + CuCI2
Is the above equation possible? Why or why not?
 updated 10 days ago
 3 replies
 No Medals Yet
Mathematics

HourglassMage:
Group Title
What is the pH of a solution containing a 1.0 x 10−4 M solution of HCl?
Answer
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 updated 10 days ago
 8 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
If 2.078 g of Smarties® requires 2.11 mL of 0.250 M Na 2CO3 to reach the endpoint, how many moles of acid is
there in each gram of the cand…
 updated 11 days ago
 16 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
Alright, I'm calling it. Help me guys, you're my only hope. I swear, I will medal you till the cows come home if you'll only help me with th…
 updated 17 days ago
 11 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
The average kinetic energy of 1 mole of a gas at 25 degrees Celsius is:
3.72 x 103 J
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 updated 17 days ago
 18 replies
 4 Medals
Mathematics

HourglassMage:
Group Title
Example of linkage institutions during the Housing Bubble of 2008. I shall medal and fan those who provide sufficient help.
 updated 21 days ago
 1 reply
 No Medals Yet
Mathematics

HourglassMage:
Group Title
CaCO3 + H2SO4 → CaSO4 + H2O + CO2
Please help! I'll medal and fan  need to know the type of reaction.
 updated 24 days ago
 15 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
The sine of 71 degrees is equal to 0.946, rounded to the nearest thousandth. What is the measure of an angle whose cosine is also equal…
 updated 27 days ago
 9 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
Using a search engine locate reliable web resources to learn more about Elena Kagan. Find
footage of her confirmation hearings in the Senat…
 updated 24 days ago
 3 replies
 No Medals Yet
Mathematics

HourglassMage:
Group Title
How does Rob Menendez use casework and pork barrel (types of credit claiming)? Need an answer ASAP; I will medal and fan!! PLEASE HELP!!
 updated one month ago
 7 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
What happens when an iron and a steel nail are put in a sugar solution and hooked up to a battery? What happens when they are put in a salt …
 updated one month ago
 4 replies
 No Medals Yet
Mathematics

HourglassMage:
Group Title
Last question...I just want to doublecheck
In the equation, A + B arrow C + D, if the sum of the masses of reactants A and B is known, a…
 updated one month ago
 7 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
Which of the equations follows the law of conservation of mass?
(a) H2 + O2 arrow H2O
(b) H+ + O2 arrow 2 H2O
…
 updated one month ago
 15 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
If the equation, C2H5OH (l) + 3O2 (g) arrow 2CO2 (g) + 3H2) (l), were performed in a laboratory at room temperature, both of the gas volumes…
 updated one month ago
 28 replies
 2 Medals
Mathematics

HourglassMage:
Group Title
How does Rob Menendez use casework and pork barrel (types of credit claiming)? Need an answer ASAP; I will medal and fan!! PLEASE HELP!!
 updated one month ago
 4 replies
 No Medals Yet
Mathematics

HourglassMage:
Group Title
What is the mole ratio of oxygen to propane (C3H8) in the following equation?
C3H8 + 5O2 arrow 3CO2 + 4H2O
 updated one month ago
 7 replies
 1 Medal
Mathematics

HourglassMage:
Group Title
at is the mole ratio of oxygen to propane (C3H8) in the following equation?
C3H8 + 5O2 arrow 3CO2 + 4H2O
 updated one month ago
 No Medals Yet
Mathematics

HourglassMage:
Group Title
What is credit claiming?
What did Rob Menendez claim credit for?
 updated one month ago
 2 replies
 No Medals Yet
Mathematics
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