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July 30, 2015

Search: Write a balanced chemical equation for the combustion reaction of C2H6O2

Number of results: 53,251

Chemistry
When the oxide of generic metal M is heated at 25.0 C, only a negligible amount of M is produced. O2M(s) ----> M(s) +O2(g) delta G= 288.9 Kj/mol When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical ...
March 14, 2012 by Jerry

chemistry
this is a question about how to write the reaction for mixing solid KOH with aqueous HCl...when i physically mixed the two there was gas formation (bubbles and heat were given off) but when i write the equation out i don't get where the gas is. the equation i got is: KOH(s) + ...
September 14, 2007 by annonymous

chemistry
After writing a balanced equation for the reaction between magnesium and hydrochloric acid, calculate the mass of magnesium needed to produce 90ml of hydrogen gas @ STP conditions.
December 9, 2010 by Tiffany

Chem 1A
The following reaction occurs in aqueous acid solution: NO3 +I →IO3 +NO2 In the balanced equation, using the smallest whole-number coefficients, what is the coefficient of NO3?
November 12, 2012 by Parkin

Chemistry
How many moles of ammonia gas can be formed from the complete reaction of 44.8 liters of nitrogen gas at standard temperature and pressure (STP), according to the balanced equation, N2 (g) + 3H2 (g) arrow 2NH3 (g)?
March 13, 2014 by Diana

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

chemistry
state two ways of decresing the reaction rate of a gas phase chemical reaction.
November 23, 2011 by michael

Chemistry
Please help me explain How a nuclear reaction differs from a normal chemical reaction and give examples.
August 6, 2012 by Elie

Chemistry
A chemical reaction takes place in a container of cross-sectional area 100 cm2. As a result of the reaction, a piston is pushed out through 19 cm against an external pressure of 630 torr. What is the value for w for this reaction? (Sign does matter.) Answer in units of J
November 7, 2011 by Broy

Chem answer check
Does this look correct? Thx! Write the balanced equation for the reaction between solid copper and silver nitrate, that produces solid silver and copper(II) nitrate in solution. Include your experimentally determined mole ratios for the copper and silver atoms as coefficients...
February 15, 2010 by Kelsey

Chem
How us the speed of a chemical reaction related to the spontaneity of the reaction?
March 1, 2010 by Alex

Chemistry
Write a balanced net ionic equation for the oxidation of metallic copper to Cu(II) ion by hot concentrated H2SO4, in which the sulfur is reduced to SO2
June 29, 2011 by Abby

Chemistry
Write the balanced net ionic equation. Label species as solids liquids gase aqueous. HNO3(aq) + Ba(OH)2(aq) ---> I don't understand the steps? And how to balance it?
July 24, 2011 by Keith

chemistry
Complete the following word equation and write the balanced formula equations: a. Zinc(s) + iodine(g) b. Hydrogen peroxide(l) c. Magnesium(s) + lead(IV) nitrate(aq)
March 3, 2012 by Anonymous

chemistry
3. Complete the following word equation and write the balanced formula equations: a. Zinc(s) + iodine(g) b. Hydrogen peroxide(l) c. Magnesium(s) + lead(IV) nitrate(aq)
March 4, 2012 by Anonymous

chemistry
Sodium-24, a beta-emitter used in diagnosing circulation problems, has a half-life of 15 hours.Write the balanced nuclear equation for this emission.
November 28, 2012 by Anonymous

Chemistry
(1)Write a balanced equation in each case dilute htdrochloric reacts with[i]ZnCO3[ii]CuCO3 (2)Discuss how hydrocarbons contribute to the formation of ozone in the atmosphere
June 18, 2015 by Tazannia Tennyson

Inorganic chemistry
The thermochemical equation for the combustion of hexane is shown below. C6H14(g) + 19/2Os(g) ==> 6CO2(g) + 7H2O(g) Delta H = -4163kJ What is the enthalpy change for the combustion of 2.50g C6H14? 2.50 g/86g = .029 mol -4163kJ/.029 = -1.43 x 10^5kJ
May 12, 2009 by Steve

chem
Hi..Can you balance these 4 chemical reactions for me please: 1) Cu + 2Ag NO3 2) Zn + Al(NO3)3 3) Cu + ZnSO4 4) Ca + 2HCI Also will a chemical reaction occur in any of these? Thanks so much Stacey
May 11, 2010 by Stacey

Chemistry
Organic chemists state that the rate of a chemical reaction can be doubled by increasing the reaction temperature by ten degrees Celsius. Explain this drastic increase in reaction rate using the concept of reactins and kinetic molecular theory
March 31, 2010 by Celia

chemistry
Write and balance the chemical reaction when gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (CH4) & liquid water
April 18, 2010 by Tracey

Chemistry Check
The Synthesis of hydrogen chloride is written H2+Cl2==>2HCl. 3L of hydrogen are used and all gasses are at STP. The volume of HCL produced in the reaction would be _______ L. would the answer be 5.96? Three liters of H2 yields six liters of HCl, from the balanced equation. ...
January 19, 2007 by Briana

chem
consider the following thermochemical equation for the combustion of acetone C3H6O(l)+4O2(g)---->3CO2(g)+3H2O(g) delta H rxn=-1790kJ. If a bottle of nail polish remover contains 179mL of acetone, how much heat would be released by its complete combustion? the density of ...
October 17, 2008 by natash

chemistry
a 0.2000 grams sample of aluminum metal is added to a solution containing 1.0000grams of an unknown compound made of platinum and chloride ion. the reaction results in the formation of aluminum chloride and platinum metal. when the reaction is complete, unreacted aluminum ...
March 3, 2014 by Anonymous

Chemistry
Neutralization reaction HCL(aq) + NaOH(aq) -> NaCl(s) + H2O(l) Use your results to determine the netball change of the neutralization reaction, in kJ/mol of NaOH, Write the thermochemical equation for the neutralization reaction. I'm not sure how to even go about doing this...
March 9, 2015 by Julie

Sicnece
A skeleton equation is not a balanced equation.- Is this sometime true, never true or always true? Can't there be some skeleton equation that is already balanced, thus it sometime true? Thanks
January 8, 2013 by Shadow

Chemistry
Give a chemical test for carbon(2) oxide and illustrate your answer with chemical equation
May 20, 2015 by Yaseerah

science
ferrous sulphate + sodium hydroxide forms ppt. ferrous hydroxide + sodium sulphate is left in the solution write a balanced chemical eqn.. for this..
June 11, 2013 by jane

AP Chemistry
This questions has 5 parts but I already have the answers for a and b. I need help on the last three parts. In an electrolytic cell, a current of 0.250 ampere is passed through a solution of a chloride of iron producing Fe(s) and Cl2(g). a) write the equation fot he half-...
April 24, 2007 by anonymous

chem
Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2755 kJ/mol), and H2 (-286 kJ/mol), ...
November 27, 2007 by mel

chemistry
Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mol), C4H8 (-2766 kJ/mol) and H2 (-286 kJ/mol), ...
December 28, 2010 by Lux

Chemistry
The value of the equilibrium constant, Kc, at a certain temperature is 4.20 x 10-2. Would the reaction as represented by the chemical equation favor reactants or products? Enter Product or Reactant. PCl5(g) = PCl3(g)+Cl2(g)
February 27, 2010 by Angel

Chemistry!!!!
1. For a reaction mechanism to be plausible, what 2 criteria must be met? 2. The reaction between CO and NO2 to produce NO and CO2 is thought to occur in 2 steps. NO2 + NO2 ====> NO + NO3 NO3 + CO =====> NO2 + CO2 The experimental rate law is, R=k[NO2]2 Write the ...
February 12, 2015 by Michelle

Chemistry!!!!
1. For a reaction mechanism to be plausible, what 2 criteria must be met? 2. The reaction between CO and NO2 to produce NO and CO2 is thought to occur in 2 steps. NO2 + NO2 ====> NO + NO3 NO3 + CO =====> NO2 + CO2 The experimental rate law is, R=k[NO2]2 Write the ...
February 12, 2015 by Michelle

someone correct my work please? fun, fun chemistry
Okay. I'm very, very confused. The initial question is: predict the products of the electrolysis of a 1 mol/L solution sodium chloride. This is my work: The four different possible equations are: 2H2o + 2e- -------> H2 + 2OH- (V= -0.83) O2 + 4H+ + 4e- -------> 2H2O (V= 1...
January 30, 2007 by Rienna

Chemistry
37. Write a balanced equation for this: Magnesium + Chlorine ---> Magnesium Chloride Is it Mg + C12 ---> MgC12 ? Thanks -MC
October 26, 2010 by mysterychicken

physics
Refering to reaction 2 H2(g) + O2(g) -> 2 H2O(g) and proving that the law of conservation of mass is obeyed during a chemical reaction.
March 2, 2012 by Belly.L

physical science(chemistry)
Why can chemical methods not be used to determine the reaction rate at different stages of the reaction?
January 17, 2013 by tsakani

science
List at least three physical properties of water which contain numerical values. Describe a chemical proterty of water which involves a chemical reaction.
January 22, 2009 by Yasmin

Chem
Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
October 23, 2014 by Martin

Chemistry
Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
October 23, 2014 by Kales

chemistry
In a soda acid fire extinguisher, concentrated sulfuric acid reacts with sodium hydrogen carbonate to produce carbon dioxide, sodium sulfate and water. How many moles of sodium hydrogen carbonate are produced from a reaction of 0.4 moles of sulfuric acid? Write the balanced ...
January 19, 2015 by student_14579

Chemistry Pretest
Consider the following balanced equation. 2 H2 + O2 ---> 2 H2O Which of the following statements is false? a) One molecule of O2 will react with 2 molecules of H2 b) One mole of O2 will react with 2 moles of H2 c) The complete reaction of 32.0 g of O2 will produce 2 moles ...
September 28, 2012 by Sarah

AP Chemistry
How many moles of butane do we need to produce 10 moles of CO2 by reaction with oxygen? I think the balanced equation is 2 C4H10 + 13 O2 -----> 8 CO2 + 10 H2O
April 30, 2013 by Timofey

Chemistry Help
How many moles of butane do we need to produce 10 moles of CO2 by reaction with oxygen? I think the balanced equation is 2 C4H10 + 13 O2 -----> 8 CO2 + 10 H2O
April 30, 2013 by Timofey

Chemistry
Why are chemical equations balanced? Explain at the atomic level.
April 25, 2009 by Susan

chemistry
Gaseous arsine reacts according to the balanced equation. If a total of -3663 KJ of heat is produced in the reaction as written, how many grams of AsH3 are consumed? (Enthalpy= -1867.2) 2 AsH3(g) + 3 O2(g) --> As2O3(s) + 3 H2O(l)
February 27, 2008 by Anonymous

chemistry
Gaseous carbon monoxide reacts according to the balanced equation. If a total of 1040 kJ of heat is generated in the reaction as written, how many grams of CO2 are produced? enthalpy=-566kJ 2 CO(g) + O2(g) → 2 CO2(g)
February 25, 2010 by eng

Chemistry
I am having a bit of difficulty getting the net equation and the net ionic equation and the net ionic equation. I think I have the balance equation right. Thanks in advance for any help. For the acid base neutralization reaction of carbonic acid, H2CO3(aq), and lithium ...
March 4, 2010 by Amanda

Chemistry--bobpursley
37. Write a balanced equation for this: Magnesium + Chlorine ---> Magnesium Chloride Is it Mg + C12 ---> MgC12 ? Thanks -MC
October 26, 2010 by mysterychicken

Chemistry
Write a balanced equation for the formation of boehmite (ALO2H) from aluminium ions and hydroxide ions.
June 4, 2012 by Zen

Chemistry
The relative number of elements and compounds in a chemical equation are represented by either coefficients, subscripts, charges of phase symbols. I think it's coefficients, but is this right? My other question is that if you start a reaction with four molecules containing a ...
April 18, 2009 by Khzyata

Chemistry
A gas sample containing only SO3, CH2O and C2H6O2 has the following mass percent composition: 65.1% SO3 and 8.79% CH2O. Calculate the partial pressure (torr) of SO3 if the total pressure of the sample is 4712 torr. Unit conversion K = C + 273 1 atm = 760 torr Molar Mass (g/mol...
March 4, 2010 by Luc

Chemistry
I'm about to do the second part of a Limiting Reagent laboratory tomorrow. There are a few questions that are giving me trouble on the pre-lab assignment. In the first lab period, we measured the amount of H2 gas produced in a reaction of Mg and 10 mL of 2.0 M HCl. We varied ...
March 11, 2009 by Jake

AP CHEMISTRY
A solution is prepared in which a trace or small amount of Fe2+ is added to a much larger amount of solution in which the [OH-] is 1.0 x 10^-2 M. Some Fe(OH)2 precipitates. The value of Ksp for Fe(OH)2 = 8.0 x10^-10. (A) Assuming that the hydroxide is 1.0 x 10^-2 M, calculate ...
April 11, 2012 by DAN

Chemistry
What do I do when writing the net ionic equation for Magnesium nitrate reacted with sodium chloride? I've wrote out the molecular equation and the total ionic equation. Everything cancels out....under my total ionic equation do i just write no reaction? |thanks!
January 19, 2011 by Jack

Chemical Reactions
How can i get the step by step procedure for a chemical reaction? For example: the step by step procedure for the synthesis reaction of ammonia
April 12, 2015 by Chemistry

Chemistry
At 627ºC, sulfur dioxide and oxygen gases combine to form sulfur trioxide gas. At equilibrium, the concentrations for sulfur dioxide, oxygen, and sulfur trioxide gases are .0060M, .0054M, and .0032M, respectively. a. Write a balanced equation for the formation of one mole of ...
February 27, 2013 by dauntedorange

Chemistry
1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation (b)Why is it important that...
April 19, 2008 by Anonymous

chemistry
1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation (b)Why is it important that...
April 19, 2008 by Anonymous

CHEMISTRY
1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation (b)Why is it important that...
April 20, 2008 by Anonymous

Chemistry
0.05 L of chlorine gas is bubbled through 0.5 L of 2 M sodium Bromide solution. -What type of reaction is this ? A) Single Replacment B) Double Replacement C) Synthesis D) Decomposition E) Combustion - What product(s) will be predicted for this reaction? (bubble all that apply...
November 12, 2014 by Courtany

Chem.. stoichiometry
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is: C + H2O → CO + H2 Is this equation balanced?
May 3, 2013 by Jenna Woodruff

chemistry
write the overall, balanced molecular equation and indicate which element is oxidized and which id reduced for the following reactions. Include phase abbreviations. a) Mg(s)+Cr(C2H3O2)3(aq)--->? b) Cd(s)+AgNO3(ag)---->?
June 12, 2010 by amanda

Calc
The temperature of a chemical reaction, t seconds after the reaction starts, is given by: T(t)= 20+5.25t^.75 degrees F , What is the average temperature during the whole process, if the reaction lasts for 4 minutes and 16 seconds ?
February 9, 2014 by Rebekah

chemistry
what is a complete and incomplete combustion reaction ??
March 30, 2014 by sunny

Chemistry
Calculate the theoretical yield of MnO3 when 2.0 moles of Mn react with 2.0 moles O2. Write a balanced equation for the reation.
March 17, 2008 by AR

chemistry
write the balanced equation for the production of oxygen gas and potasium chloride from the decomposition of the potasium chlorate
February 18, 2010 by Anonymous

Chemistry
An structural isomer of bromobutane (C4H9Br) can be hydrolysed using aqueous sodium hydroxide to produce butanol. This can be represented by the following equation: C4H9Br(l) + OH-(aq)  C4H9OH(l) + Br-(aq) This reaction was investigated experimentally and the following...
April 3, 2012 by turner

cheistry - please help!
1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation (b)Why is it important that...
April 20, 2008 by Anonymous

Chemistry - please help!
1)Ethanol is made by the fermentation of sugar. (a)Suggest a temperature for carrying out the fermentation and explain your answer. -40C(ish), ??to do with enzymes; they can't or don't work as well in other temps./controls the speed of fermentation (b)Why is it important that...
April 20, 2008 by Anonymous

Chemistry
CONSIDER THE FOLLLOWING UNBALANCED REDOX EQUATION: IO3^-(AQ) + Al(S)-->I2(S) + A;^3+(AQ) A. WHAT IS THE OXDATION NUMBER OF IODINE IN THE IODATE ION? I GOT IO3^6(AQ)? B. WHICH SPECIES IS THE REDUCING AGENT I GOT AL^3+(AQ) C. USING THE OXIDATION AND REDUCTION HALF REACTIONS ...
November 30, 2011 by PAM

Analytic chemistry
A solution of HClO4 was standardized by dissolving 0.3745 g of primary standard grade HgO in a solution of KBr. The liberated OH- required 37.99 mL of the acid to be neutralized. Find the molarity(M) of HClO4. The given balanced chemical equation is: HgO + 4Br- + H20 ===> ...
January 21, 2015 by Smile

chemistry
Does an insoluble solid dissociate into ions? Is the reaction reversible? Will an equilibrium reaction form when a chemical reaction forms an insoluble solid? Why, or why not?
April 23, 2012 by Anonymous

Biology
9. a molecule shaped like a spiral staircase (double helix) is a typical of a. deoxyribonucleic acid b. ribonucleic acid c. carbohydrates d. both a and b D? 10. ATP is important to living organisms because it a. stores hereditary information b. stores energy from food to be ...
January 20, 2010 by mysterychicken

Biology
9. a molecule shaped like a spiral staircase (double helix) is a typical of a. deoxyribonucleic acid b. ribonucleic acid c. carbohydrates d. both a and b D? 10. ATP is important to living organisms because it a. stores hereditary information b. stores energy from food to be ...
January 21, 2010 by mysterychicken

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
May 27, 2013 by Brya

chemistry
Explain why the rate of a simple chemical reaction such as NO(g)+1/2O2(g)=NO2(g) is likey to be most rapid at the beginning of the reaction.
May 3, 2010 by Kim

Electrochem
An electrolytic cell produces aluminum from Al2O3 at the rate of ten kilograms a day. Assuming a yield of 100% a) how many moles of electrons must pass through the cell in one day? b) how many amperes are passing through the cell? c) how many moles of oxygen (O2) are being ...
May 13, 2007 by Keith

Science
Chlorine gas was bubbled through a warm concentrated solution of potassium hydroxide. -write an equation of reaction that took place -describe how pure crystals potassium chlorate (5) may be obtained from the reaction above
July 30, 2011 by Piom

Chemistry
how do you write a chemical equation with this reaction? can u help me solve these 1.Liquid carbon disulfide reacts with oxygen gas, producing carbon dioxide gas and sulfur dioxdie gas. 2. Solid zinc and aqueous hydrogen sulfate reacts to produce hydrogen gas and aqueous zinc ...
January 26, 2009 by Lauren

Chemistry
Can someone PLEASE help me with this???? I am soooo confused with this problem!!! Combustion reactions involve reacting When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 ...
October 26, 2009 by Natalie

Chemisty
Fluorine gas can react with ammonia gas to produce dinitrogen tetrafluoride gas and hydrogen fluoride gas. This reaction is described by the following balanced equation: 5 F2 (g) + 2 NH3 (g) N2F4 (g) + 6 HF (g) What mass of hydrogen fluoride gas is produced from 135 g of ...
March 8, 2013 by Anna

AP Chem
I know this might sound easy... but i need these problems for bonus and i want to make sure they are right Silver nitrate reacts with strontium chloride in an aqueous precipitation reaction. What are the formulas of silver nitrate and strontium chloride? Write the molecular ...
October 27, 2008 by Anna-Marie

Chemistry
C2H5O2N is an important compound. The combustion reaction of glycine proceeds according to this equation: 4C2H5O2N + 9O2 ---> 8Co2 +10H2O +2N2 which is = -3857 kJ Given CO2 is -393.5 kJ/mol Given H2O is -285.6 Calculate the standard molar enthalpy of formmation of glycine.
November 8, 2011 by Izzie

Chemistry
37. Write a balanced equation for this: Magnesium + Chlorine ---> Magnesium Chloride 40. How many torr equal 760 mm Hg? Please explain how to do these. Thanks -MC
October 26, 2010 by mysterychicken

Chemistry
Write a balanced equation Solid phosphorus (P) combusts with oxygen gas to form solid tetraphosphorus heptaoxide.
January 6, 2015 by Rachel

chemistry
Write the balanced net ionic equation for the following reaction and determine the conjugate acid-base pairs. HNO3(aq)+Li2CO3(aq)<--->LiNo3(aq)+LiHCO3(aq) Which component in the net ionic equation is the acid, the base, the conjugate base, and the conjugate acid Thank ...
April 30, 2015 by kim

Chemistry (w.e or DrBob222)
Calcium Carbonate and aluminum silicate are mixed together and heated. A mixture of calcium oxide, carbon dioxide, aluminum oxide and calcium silicate is produced. Write the balanced equation for this reaction. My Work: 4CaCO3(s) + Al2(SiO3)3(s) → CaO(s) + 4CO2(g) + ...
January 29, 2011 by Jim

Chem
How do you write redox reactions. I was given this equation below: 2Mg + O2 --> 2MgO I have to write the redox reaction
July 29, 2009 by Lena

chemistry
Use the following balanced equation. 3Sr(OH)2 + 2H3PO4 --> 6H20 + Sr3(PO4)2 How many grams of Sr3(PO4)2 could be produced by the complete reaction of 200 mL of 0.40 M H3PO4?
June 20, 2011 by Brea

Chemis
Write a blanaced molecular equation for the reaction 2Na(NO3) + Cu(OH)2. Write complete ionic and net ionic equations?
October 29, 2012 by alexis

Chemistry
Write a blanaced molecular equation for the reaction 2Na(NO3) + Cu(OH)2. Write complete ionic and net ionic equations?
October 29, 2012 by alexis

College Chemistry
give the balanced equation for oxidation of iron(II)ion by permanganate and find how many millimoles of permanganate ion react with one millimole of ammonium iron(II) sulphate. I have the balanced equation: MnO4+8H+5Fe^(2+) --> Mn+4H2O+5Fe^(3+) what would be my next step?
July 9, 2012 by Anonymous

chemistry
When the equation Fe2(SO4)3(aq) + 3Ba(OH)2(aq) ! is completed and balanced, a term in the balanced equation is 1. 2 Fe(OH)(s). 2. 2 Fe2(SO4)3(aq). 3. Ba2(SO4)3(aq). 4. 2 Fe(OH)3(s).
November 6, 2011 by lynn

Chemistry
Constant-volume calorimeters are sometimes calibrated by running a combustion reaction of known ΔE and measuring the change in temperature. For example, the combustion energy of glucose is 15.57 kJ/g. When a 2.500 g sample of glucose burns in a constant volume calorimeter...
October 23, 2014 by Kales

Chemistry
In a reversible reaction, chemical equilibrium is attained when ? 1. Rate of the forward reaction is greater than the rate of the reverse reaction. 2. Rate of the reverse reaction is greater than the rate of the forward reaction, 3. Concentration of the reactants reaches zero ...
March 9, 2011 by Jazmin F.

Chemistry
Calculate the percent yield of iron if 950 g of Fe3O4 underwent the reaction shown in the chemical equation below and 533 g of Fe was isolated from the reaction mixture. Fe3O4 (s) + 2 C(s) ----> 2 CO2 (g) + 3 Fe(s) 1). 25.9% 2). 77.5% 3). 56.1% 4). None of the above. Based ...
April 11, 2007 by Van jan

Chem
A tank car containing concentrated HCL (molarity 12.1) derails and spills exactly 1500 L of acid. Solid potassium hydroxide is required ot neutralize the spill. (a) Write a balanced chemical equation. HCl + KOH -> kCl + H2O (b) What is the molar ratio between acid and base...
July 6, 2009 by Lena

chem
Consider the reaction that occurs on mixing 50.0 mL of 0.560 MNaHCO3 and 50.0 mL of 0.400 M NaOH at25oC. (a) Write a balanced net ionic equation for thereaction. (b) What is the pH of the resulting solution? (c) How much heat (in joules) is liberated by thereaction? (standard ...
March 29, 2011 by pal

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