Thursday
April 24, 2014

Search: "balanced equation for the reaction of the oxygen and the magnesium" including their physical states

Number of results: 29,278

Calculus
In a chemical reaction, substance A combines with substance B to form subtance Y. At the start of the reaction, the quantity of A present is a grams, and the quantity of B present is b grams. Assume a is less than b. At time t seconds after the start of the reaction, the ...
Sunday, April 10, 2011 at 12:23am by Katrina

Chemistry
Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer was Mn3(PO4)2 (s) = Mn^2+(aq) + (PO4)2 ^3- (aq) but thats not right. then for the Ksp expression i thought it was [Mn^2+] [PO4]^2
Tuesday, November 30, 2010 at 10:15pm by Jake

Chemistry
Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer was Mn3(PO4)2 (s) = Mn^2+(aq) + (PO4)2 ^3- (aq) but thats not right. then for the Ksp expression i thought it was [Mn^2+] [PO4]^2
Wednesday, December 1, 2010 at 12:14am by Jake

Chemistry
If 0.433 mol of gaseous CS2 and 1.62 mol of gaseous H2 are reacted according to the balanced equation at 454 K and in a 40.0 L vessel, what partial pressure (atm) of gaseous CH4 is produced? CS2(g) + 4H2(g) -> CH4(g) + 2H2S(g) Molar Mass (g/mol) CS2 76.143 H2 2.016 CH4 16.043
Sunday, April 11, 2010 at 2:40am by Luc

Chemistry
A sample of 0.0020 mole of HCl is sissolved in water t omake a 2000ml solution. Calculate the molarity of the HCl solution, the (H30+) and the pH. For a strong acide such as HCl the (h30+) is the same as the molarity of the HCl solution. HCl +H20 Balanced equation H30+ +Cl
Wednesday, December 1, 2010 at 10:35am by Susie

Chemistry
The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400 degrees C. The heat capacity of the calorimeter and water combined is 2.48kJ/degrees C. Find the molar heat of combustion of gaseous isooctane. The ...
Tuesday, October 9, 2012 at 7:46pm by Heather

chem
The molecular formula is: Na(s)+ H2O(l)---->NaOH(aq)+H2(g) This is showing a single displacement reaction.I am not sure how to show the complete ionic equation, this is what I have so far: Na+(s)+ H+ H+O2-(l)---->Na+OH-(aq)+H2+(g) Is this how you show it?
Tuesday, April 21, 2009 at 12:22am by Lenny

chemistry
Balance equation for reaction occuring in basic solution. CrO4{2-}+S{2-}gives S+CrO{-} i dont know how to balance the charges in this way of balancing please teach me how to do it?
Saturday, April 3, 2010 at 3:45pm by mohd

chemistry
How do I balance the following equation by the half-reaction method (it takes place in basic solution)? Fe(OH)2(s) + O2(g) = Fe(OH)3(s) the answer is 4Fe(OH)2(s) + 2H20(l) + O2(g) = 4Fe(OH)3(s) but how do I work it out?
Sunday, October 7, 2012 at 1:21am by Lydia

Chemistry
Asprin, c9h804, is produced through the following reaction of salicyclic acid, c7h6o3, and acetic anhydride, c4h6o3. chemical equation: c7h6o3 + c4h6o3 yields c9h8o4 + hc2h3o2 (all numbers in this equation are subscripts) At 20 degrees Celsius. how many liters of acetic acid, ...
Sunday, January 21, 2007 at 2:18am by Steph

Chemistry
At 1200 K, the approximate temperature of vehicle exhaust gases, Kp for the reaction <- 2CO2(g) -> 2CO(g) + O2(g) is about 1*10E-13. Assuming that the exhaust gas (total pressure 1 bar) contains 0.2% CO, 12% CO2 and 3% O2 by volume, is the system at equilibrium with ...
Saturday, August 16, 2008 at 6:31am by Helen

Chemistry
At 1200 K, the approximate temperature of vehicle exhaust gases, Kp for the reaction 2CO2(g)⇄2CO(g) + O2(g) is about 1*E-13. Assuming that the exhaust gas (total pressure 1 bar) contains 0.2% CO, 12% CO2 and 3% O2 by volume, is the system at equilibrium with respect to ...
Saturday, August 16, 2008 at 6:35am by Helen

chemistry
write the equation for copper(II) sulfate pentahydrate and ammonium sulfate forming: Cu(NH4)2(SO4)2*6H2O not sure how to balance it Check your question very carefully. Is this a question given to you by a teacher? yeah it is in a lab CuSO4.5H2O + (NH4)2SO4 >>Cu(NH4)2(SO4...
Monday, November 6, 2006 at 8:59pm by harry

Chemistry
Write the net ionic equation for this reaction occurring in water: Sodium phosphate and calcium chloride are mixed to form sodium chloride and calcium phosphate. 1. No reaction occurs. 2. 2Na3PO4 + 3Ca2+ -> 6Na+ + Ca3(PO4)2 3. 2 PO3−4 + 3Ca2+ -> Ca3(PO4)2 4. PO2&#...
Saturday, October 16, 2010 at 5:11pm by Elva

science
Please help this is worth a big grade and is due tomorrow stoichiometry calculation- Na weighs .53g water is 91.92 ml Patm= 30.03 in Hg Gas Law Calculation same info as above Balanced Chem. equation same info as above Unit conversion setup and calculation same info as above
Wednesday, May 30, 2007 at 4:39pm by matt

Chemistry
The Solvay process for the manufacture of sodium carbonate begins by passing ammonia and carbon dioxide through a solution of sodium chloride to make sodium bicarbonate and ammonium chloride. The equation for this reaction is H2O + NaCl + NH3 + CO2 → NH4Cl + NaHCO3. In ...
Saturday, April 3, 2010 at 6:38pm by David

Chemistry
1. The delta Hf of an element in its standard state is defined to be a) 0 kJ/mol b) 10 kJ/mol c) -10 kJ/mol d) greater than 0 kJ/mol e) a unique value for each element I am assuming its a? 2. Which of the following statements are true? I) The reaction vessel cools when an ...
Wednesday, July 21, 2010 at 10:01pm by Bobby

Algebra 1
What is an equation of a line perpendicular to the line with equation y = 1 - 3x a.y=-3x + 5 b. y=3x + 5 c.y=-1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= -6 5x - 3y = -16 a. substitute -4y-6 for x in the first ...
Monday, April 22, 2013 at 7:00pm by Ley

High school AP chem
The solubility of Mn(OH)2 is 3.04 x 10^-4 gram per 100 ml of solution . A) write the balanced chem equation for Mn(OH)2 in aqueous solution B) calculate the molar solubility of Mn(OH)2 at 25 degrees celcius C) calculate the value of the solubility product constant, Ksp, for Mn...
Tuesday, April 1, 2014 at 1:52pm by Chem review question

chemistry
Find te Yield of Carbon Dioxide in an Alkaseltzer Reaction. Equation: HCH3COO (Acetic Acid)+ NaHCO3 (Sodium Bicarbonate) -> NaCH3COO+ H20 (water)+ CO2 (Carbon Dioxide) So i know to find the Yield its Actual Yield / Theoretical Yield. How do i find the Theoretical Yield and ...
Friday, April 15, 2011 at 9:56pm by Sara

chemistry
calculate the half-life of a first- order reaction if the concentration of the reactant is 0.0396 M at 12 seconds after the reaction starts and is 0.00579 M at 47 after the reaction starts. How long does it take for the reactant concentration to decrease to 0.00269 M
Friday, November 18, 2011 at 9:28pm by saud

chemistry
calculate the half-life of a first- order reaction if the concentration of the reactant is 0.0396 M at 12 seconds after the reaction starts and is 0.00579 M at 47 after the reaction starts. How long does it take for the reactant concentration to decrease to 0.00269 M
Friday, November 18, 2011 at 10:25pm by saud

Chemistry 101
Write the reaction that occurs when sodium phosphate and barium chloride react. Be sure to include the phase labels. Then write the total ionic reaction and the net ionic reaction including proper phase labels.
Wednesday, June 3, 2009 at 1:56pm by Juggernaut

Chemistry
For a particular reaction, ΔH is 20.1 kJ/mol and ΔS is 45.9 J/(molK). Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction? The reaction is spontaneous for temperatures is ...
Sunday, December 2, 2012 at 4:39pm by Anonymous

Chemistry(please help)
I have to calculate the concentration of I2 produced (# of moles of I2 produced / L) based on the stoichiometric ratio in the following equation. 2S2O3^2- + I2 -> 2I^- + S4O6^2- So I got 6.6e-3 L*min for the amount of I2 produced. Now I have to calculate the rate for each ...
Tuesday, February 28, 2012 at 1:03am by Hannah

Chem
The solubility of Mn(OH)2 is 3.04 x 10^-4 gram per 100 ml of solution . A) write the balanced chem equation for Mn(OH)2 in aqueous solution B) calculate the molar solubility of Mn(OH)2 at 25 degrees celcius C) calculate the value of the solubility product constant, Ksp, for Mn...
Tuesday, April 1, 2014 at 11:33am by Bee

structural formulae
REACTION 1 IS A CARBON COMPOUND CONTAINING AN ALCOHOL FUNCTION GROUP + REACTION 2 IS A CARBON COMPOUND CONTAINING A CARBOXYLIC GROUP. IM TRYING TO UNDERSTAND THE PRODUCT FORMULAE. CAN YOU TELL ME HOW THESE TWO FUNCTION GROUPS REACT, AND THE RELEVANCY OF CH IN THIS EQUATION ...
Friday, March 9, 2007 at 6:36am by honey

Chemistry
the equation is TiCl4 + O2 (yields) TiO2 + 2Cl2. How much titanium(IV) chloride must react with excess oxygen to prepare 175 grams of the pigment? The reaction is found to be 85% efficient? (%yield)??
Wednesday, February 15, 2012 at 9:07pm by Michelle

chemistry
Balance each of the following redox equations using the half-reaction method. HI(s) + H2SO4 (aq) --> H2S(g) + I2 (s) My only question about this equation is...how do I know how many electrons I need to put on both sides? Other than that I know how to do it.
Saturday, February 25, 2012 at 6:59pm by Aria

Chemistry
1) given the following equation : Na2O 2Hl__>2Nal H2O (501.6KJ) a) 1f 9g of Nal are formed by the process, how much heat(q)will be involved? b) state whether the reaction is endorthermicor exothermic
Tuesday, February 5, 2013 at 12:10pm by Shazra

chemistry
In an experiment a student allowed benzene C6H6+ TO REACT WITH EXCESS BROMINE BR2+ In an attempt to prepare bromobenzene C6H5Br. This reaction also produced as a by-product, dibromobenzene, C6H4Br2+ On the basis of the equation. C6H6 + Br2 -> c6h5Br + H Br a) What is the ...
Thursday, November 1, 2012 at 12:46am by Dolly

Chemistry
In an experiment a student allowed benzene C6H6, TO REACT WITH EXCESS BROMINE BR2, in an attempt to prepare bromobenzene C6H5Br. This reaction also produced as a by-product, dibromobenzene, C6H4Br2, On the basis of the equation. C6H6 + Br2 -> c6h5Br + H Br a)What is the ...
Thursday, November 1, 2012 at 1:19am by Sunny

Chem
The apparent equilibrium constant for the reaction A + B <==> 2C is Kc= 4.11 at 298.2 K. Given that the initial concentrations of A, B, and C are .10M, .10M, and zero, respectively, find the equilibrium concentrations of A, B, and C. I had this long, drawn out equation ...
Monday, April 16, 2007 at 6:27pm by Chris

Chemistry
If 150 mL of 1.73 M aqueous NaI and 235 g of Pb(NO3)2 are reacted stoichiometrically according to the balanced equation, how many grams of Pb(NO3)2 remain? Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq) Molar Mass (g/mol) NaI 149.89 Pb(NO3)2 331.21 Density (g/mL) - Molar...
Thursday, February 19, 2009 at 1:13am by Jake

Chemistry
1) Balance this redox reaction using the oxidation-number method. Zn + O2 + HCl ZnCl2 + H2O 2) Balance this redox reaction using the half-reaction method. (basic solution) Zn + MnO4- Zn(OH)2 + MnO2
Wednesday, October 13, 2010 at 4:07pm by Sara

Chemistry
What is the difference between a forward and a reverse reaction? I am studying Lechatelier's principal and it states that with an increase in temperature it favors a reverse reaction and when the temperature decreases it favors a forward reaction. What does this mean exactly?
Sunday, March 3, 2013 at 7:02pm by Jaden

Chem II
The reaction A -->B---> C is called a _______ reaction? Consecutive parallel competing stepwise
Friday, June 13, 2008 at 4:59pm by Ken

Chemistry
Could you explain in detail why a saponification reaction is considered to be the reverse of an esterification reaction.
Tuesday, October 20, 2009 at 8:11pm by Kristina

college
For the reaction P4(s) + O2(g) = P4 O10(s) Identify the limiting reaction mixture conataining 1.00 mol each of P4 and O2
Wednesday, March 10, 2010 at 2:20pm by Al

Chemistry
consider the following reaction mechanism 2A+B->B+C B+D->E+C What is the rate law for step 2 of this reaction?
Monday, February 7, 2011 at 9:35pm by Candice

Chemistry
What is the product of the following reaction: Mn(s) + Cu(NO3)2 -> I just want to make sure if it's Mn+2 + Cu(s) or if there's no reaction...
Friday, February 25, 2011 at 12:47pm by Catherine

Chem
Why do the rate of reaction for a reversible reaction slows down at equilibrium stage.
Saturday, March 10, 2012 at 7:56am by Rose

chemistry
Given the reaction 1/2 N2( g) + 3/2 H2 (g) ___> NH3 (g) +11.0kcal.Is this reaction exothermic or endothermic?
Sunday, April 8, 2012 at 2:34pm by faisal

Chemistry
What mass of N2O5 will result from the reaction of 6.0 mol of NO2 if there is a 61.2% yield in the reaction?
Monday, May 27, 2013 at 11:54pm by Brya

Chemistry
Ok, so in an when an endothermic reaction occurs, is it hot or cold? and why? Also what is it for an exothermic reaction? Thank you
Friday, May 31, 2013 at 6:43pm by K

Chemistry
Ok, so in an when an endothermic reaction occurs, is it hot or cold? and why? Also what is it for an exothermic reaction? Thank you
Friday, May 31, 2013 at 6:50pm by K

chemistry
what is the oxidation half-reaction in the following chemical reaction? fe(s) + 3 agno3 -> ag + fe(no3)3
Thursday, April 3, 2014 at 12:21pm by Anonymous

chem
Carbon monoxide is detected in air samples by its reaction with diiodine pentoxide to form carbon dioxide and elemental iodine: CO+I2O5 --> CO2+I2. Balance the equation.
Tuesday, January 5, 2010 at 7:10pm by desperate

chemistry
The combustion reaction of acetylene gas is represented by this equation: 2C2H2(g) + 5 O2(g) ==> 4CO2(g) + 2H2O(g) How many grams of CO2 and grams of H2O are produced when 52.0g C2H2 burns in oxygen?
Monday, March 22, 2010 at 7:53pm by Danny

chemistry
calculate the molarity of an acetic acid solution if 39.96 mL of the solution is needed to neutralize 136mL of 1.41 M sodium hydroxide. the equation for the reaction is HC2H3O2(aq) + NaOH(aq) > Na+(aq) + C2H3O2(aq) +H2O(aq)
Sunday, April 29, 2012 at 9:49pm by Randy

chemistry
calculate the molarity of an acetic acid solution if 39.96 mL of the solution is needed to neutralize 136mL of 1.41 M sodium hydroxide. the equation for the reaction is HC2H3O2(aq) + NaOH(aq) > Na+(aq) + C2H3O2(aq) +H2O(aq)
Sunday, April 29, 2012 at 9:49pm by Randy

Science
The products of the reaction between zinc and sulfuric acid are zinc sulfate, hydrogen sulfide, and water. Balance the equation using the electron-transfer method.
Tuesday, November 6, 2012 at 9:32pm by Zach

Chemistry
If 1.62 mold of CS2 burns with 5.65 mol of O2, how many moles of the excess reactant will still be present when the reaction is over? the chemical equation is CS2+3O2=2SO2+CO2
Monday, May 27, 2013 at 11:58pm by Brya

chemistry
what is the difference between acid base reaction and oxidation reaction
Tuesday, September 15, 2009 at 9:00pm by ANON

Chemistry
How does the activation energy of an uncatalyzed reaction compare with that of the catalyzed reaction?
Monday, March 1, 2010 at 10:56pm by Gabby

chemistry
for an exotherimic reaction incresing the reaction temperature results in a (n)___k ?
Tuesday, March 22, 2011 at 6:16pm by jay

Chemistry
What chemical compound is formed in the reaction when 6M HCl and 1M NaOH is reaction?
Thursday, August 30, 2012 at 9:44pm by Sheila

Chemistry
Tungsten metal can be produced by the reaction of tungsten oxide powder (WO3) with hydrogen gas (H2) in a reactor heated to 800oC. The by-product of the reaction is water vapor (H2O). The reactor is charged with 128.0 kg of WO3 and 41.0 kg of H2. Assume that the reaction goes ...
Monday, March 25, 2013 at 12:23am by Chemq

chemistry
If 0.760 mol of solid TiO2 and 4.20 g of solid C are reacted stoichiometrically according to the balanced equation, how many liters of gaseous CO measured at STP are produced? 3TiO2(s) + 4C(s) + 6Cl2(g) 3TiCl4(l) + 2CO2(g) + 2CO(g) Molar Mass (g/mol) TiO2 79.878 C 12.011 CO...
Wednesday, June 2, 2010 at 6:16am by Judy

chemistry
Write out the net ionic equation for: Cd(NO3)2 + Na2S -----> 2NaNO3 + CdS ----- thanks!! Write out the net ionic equation for: Cd(NO3)2 + Na2S -----> 2NaNO3 + CdS If this is done in a water solution, then the sodium nitrate will be in solution, as was the Cd(NO3)3 (both ...
Tuesday, September 12, 2006 at 3:42pm by Tessa

biochemistry
I am studying for a midterm. Do you know this answer? what reaction does LDH actually catalize and why is that reaction important?
Friday, February 29, 2008 at 7:25pm by stew

Chem II
A first-order reaction is 35.5% complete in 4.90 minutes. The rate constant of the reaction is _____
Friday, June 13, 2008 at 5:05pm by Ken

chemistry
a first order reaction has a rate constant of 7.5 x 10^-3/s. The time required for th reaction to be 60% complete is
Tuesday, June 17, 2008 at 2:28pm by Angel

CHEM
For the reaction of HNO3 is this the reaction? Is the water liquid? 2HNO3(s)> 2NO2(g)+H2O(l)+ 1/2O2(g)
Thursday, April 30, 2009 at 7:19pm by Sandy

Chemistry
Since decomposition is an endergonic reaction. Does this mean it's reverse reaction synthesis is exothermic?
Monday, August 3, 2009 at 6:03pm by kevin

science
Given the following reaction, with Kp=1.05 at 250 degrees C what is Kc? The reaction is PCl5 to PCl3+Cl2
Tuesday, April 13, 2010 at 1:54pm by Nick

chemistry
WHAT WOULD HAPPEN TO THE REACTION THAT PRODUCES AMMONIA IF WATER IS PRESENT IN THE REACTION MIXTURE?
Tuesday, July 12, 2011 at 1:11pm by ASHLEE

chemistry
For the reaction HCO3- H+ + CO32-, ΔG = +59.0 kJ/mol at 298.15 K. Find the value of K for the reaction
Thursday, January 12, 2012 at 4:03pm by yous

chemistry
alternative reaction for acrylic acid and analyzing reaction for finding gross profit
Thursday, January 10, 2013 at 9:36am by rajib

biochemistry
The ΔG' of the reaction is -5.31 kJ mol1. Calculate the equilibrium constant for the reaction. (Assume a temperature of 25 C.)
Sunday, February 3, 2013 at 11:49am by stoic-rider77

chem!!
Question: 1. The value of the equilibrium constant for the reaction H2CO3(aq) + energy nnH2O(l) + CO2(g) can be changed by introducing a change to which component of the equation? This relates to the Le Chatelier principle. Thanks! Keq (the constant itself) changes only with...
Wednesday, June 14, 2006 at 9:52pm by ???

Chemistry
a) Find the empirical formula for KxFey(C2O4)znH2O given % percents: potassium = 34.5% iron = 11.4% water = 11.0% oxalate = 43.1 % b) Insert values for x, y, z into KxFey(C2O4)znH2O then give correct coefficients to balance the equation: _Fe(NH4)2(SO4)2*6H20 + __H2C2O4 + ...
Friday, May 2, 2008 at 1:58pm by Terry

Chemistry(Please check)
1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the following...
Saturday, February 25, 2012 at 3:40pm by Hannah

Chemistry(Please check)
1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the ...
Saturday, February 25, 2012 at 6:34pm by Hannah

Chemistry
A typical fat in the body is glyceral trioleate, C57H104O6. When it is metabolized in the body, it combines with oxygen to produce carbon dioxide, water, and 3.022 x 10^4 kJ of heat per mole of fat. B)How many kilokoules of energy must be evolved in the form of heat if you ...
Friday, March 19, 2010 at 11:42pm by Jayden

chemistry
A reaction starts with 1.00 mol each of PCl3 and Cl2 in a 1.00-L flask. When equilibrium is established at 250 degree Celsius in the reaction PCl3(g)+ Cl2(g)--> PCl5(g), the amount of PCl5 present is 0.82 mol. What is Kc for this reaction?
Tuesday, October 26, 2010 at 12:49pm by Shanice

Chemistry
H2(g) + I2(g) 2 HI(g) The forward reaction above is exothermic. At equilibrium, what happens if I2 is removed from the reaction mixture at constant temperature and volume? The reaction absorbs energy. The reaction releases energy. [H2] increases. [H2] decreases. [H2] remains ...
Sunday, September 19, 2010 at 9:32pm by Megan

science
The primary source of energy in our solar sysem is from? a) fusion reaction on the sun b) fission reaction on the sun c) fission reaction on the earth d) fission and fusion in the galaxy e) fusion reactions in comets the answer i picked was a
Monday, August 16, 2010 at 12:10pm by babe

Chemistry: Answer check please!
1. Reactions follow the law of conservation of mass. a.) True b.) False Answer: True 2. Reactants are the materials used in a chemical reaction. a.) True b.) False Answer: True 3. In a chemical equation, the mass on the left of the arrow equals the mass on the right. a.) True ...
Saturday, April 2, 2011 at 7:32pm by Cheryl

General Chemistry
A 0.1358g zinc metal reacts completely with Dil HCL to produce 52.20ml of H2(g) at 22.0 degrees Celsius. The hydrogen gas is collected over water at 22.0 degree Celsius and a barometric pressure of 755 mm Hg. The water vapor pressure at 22.0 degrees Celsius is 19.8 mm Hg and ...
Monday, September 5, 2011 at 5:57pm by Kathy

Chemistry(Please check answers)
1) The decomposition of hydrogen peroxide in solution and in the presence of iodide ion was studied in laboratory, and the following mechanism proposed based on the experimental data. H2O2 + I - = H2O + IO - (slow) H2O2 + IO - = H2O + O2 + I - (fast) Which one of the ...
Sunday, February 26, 2012 at 12:56pm by Hannah

chemistry
A reaction rate increases by 60.3% when the temperature is increased from 21.5 to 35.6C. Calculate the activation energy (in kJ/mol) for the reaction.
Sunday, March 23, 2008 at 8:59pm by matt

chem
Which reaction has been chosen as the 'standard' against which every other reaction is measured? A. Li+ + e --> Li B. F2 + 2e --> 2F C. 2H+ + 2e --> H2 D. O2 + 4H+ + 4e ==> 2H2O E. H2 + 2e ==> 2H
Friday, April 18, 2008 at 10:29pm by Matt

chemical
how to obtain the kinetic data for this reaction 2NO3+2H2>2H2O+N2 HOW TO PERFORM THIS REACTION IN LAB.
Monday, April 19, 2010 at 1:31am by assia

CH102
If a temperature increase from 18.0 to 34.0 triples the rate constant for a reaction, what is the value of the activation barrier for the reaction?
Friday, July 16, 2010 at 8:32pm by Ellen

Chem12
Calculate Kp for the reaction N2(g) + 3 H2(g)--> 2 NH3(g) given that the reaction has Kc = 438,880,639 at a temperature of 265.
Monday, May 2, 2011 at 11:47pm by Ryan

chemistry
Balance the following redox reaction using the half reaction method: NaIO3+KI==> I2+H20+Na(+1)+K(+1)
Monday, November 7, 2011 at 10:11pm by steve

chemistry
state two ways of decresing the reaction rate of a gas phase chemical reaction.
Wednesday, November 23, 2011 at 7:40pm by michael

Chemistry
Please help me explain How a nuclear reaction differs from a normal chemical reaction and give examples.
Monday, August 6, 2012 at 8:02pm by Elie

chemistry
what are the reaction steps of the reaction between ferric chloride with hydrogen at 600 degree celsius
Saturday, February 8, 2014 at 2:50am by nivedita

Chem
How do you determine the rate of reaction of a substance using stoichiometry and the average volume of the reaction on mixture?
Sunday, February 16, 2014 at 7:48pm by Anonymous

chemistry
The equilibrium constant, Kp, for the following reaction is 2.74 at 1150 K. Calculate Kc for this reaction at this temperature. 2SO3(g) 2SO2(g) + O2(g)
Sunday, March 9, 2014 at 2:52pm by Anonymous

Chem
How us the speed of a chemical reaction related to the spontaneity of the reaction?
Monday, March 1, 2010 at 10:37pm by Alex

Chemistry
What is the standard enthalpy of reaction for the following reaction: H2 + 1/2 O2 --> H2O(g)
Friday, March 11, 2011 at 4:59pm by Lauren

Chemistry
what is the relationship between reaction spontaneity and the extent of reaction?
Friday, April 13, 2012 at 11:02am by meme

chemistry
A reaction has H = -378 kJ and S = -37 J/K. Calculate G at 25C to confirm that the reaction is spontaneous. in kJ
Tuesday, May 15, 2012 at 9:48pm by maddy

Chemistry
Hi Please help Initial [Fe3+] = 0.00050 M Initial [SCN-] = 0.0010 M Equilibrium [Fe(SCN)2+] = 5.7 x 10-5 Find [Fe3+]E and [SCN-]E (in mol/L) Find K. Balanced equation is: Fe3+ + SCN- -> Fe(SCN)2+ (reversible) I know I can get K if I have the equilibrium concentrations, but ...
Thursday, February 3, 2011 at 5:24pm by Sara

chem
For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the temperature is increased. PCl5(g) <===> PCl3(g) + Cl2(g) a) What is the sign of S for the reaction? Explain. b) What change, if any, will occur in G ...
Tuesday, April 29, 2008 at 11:43am by Luke

Statics
You wish to test whether or not a coin is fair, so you toss it 400 times and obtain 220 heads. Test the null hypothesis that the coin is fair and balanced against the alternative that it is not fair and balanced. Use the 1% significance level. Be sure to identify the null and ...
Sunday, December 2, 2012 at 10:44am by Heather

Chemistry
I am pretty good at balancing oxidation reduction problems, but I can't do this one: HIO3 + FeI2 + HCL -> FeCl3 + ICl + HOH 5HIO3 + 4FeI2 + 25HCl -> 4FeCl3 + 13ICl + 15HOH I separated the three redox equations, added the two oxidation reactions together, then balanced ...
Friday, February 2, 2007 at 5:17pm by Brendan

Pages: <<Prev | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | Next>>

Search
Members