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April 16, 2014

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

Number of results: 73,865

Chem
Write the equation. Write the expression for Kc. Substitute into Kc and calculate the reaction quotient, Q. Compare that with Kc. If Q<Kc, it means the numerator is too small, the denominator is too large, and the reaction will go to the right. If Q>Kc, it means the ...
Monday, March 22, 2010 at 10:24pm by DrBob222

chemistry
One step in the isolation of pure rhodium metal (Rh) is the precipitation of rhodium(III) hydroxide from a solution containing rhodium(III) sulfate According to the following balanced chemical equation: Rh2(SO4)3(aq)+ 6NaOH(aq)→ 2Rh(OH)3(s)+ 3Na2SO4(aq) What is the ...
Thursday, March 14, 2013 at 3:07pm by Jane

Chemistry 104 PLEASE HELP ME!!
Calculate Eo (reduction potential) for the following balanced reaction. NiO2 + 2H2O + 2Fe(OH)2 Ni(OH)2 + 2Fe(OH)3
Friday, May 3, 2013 at 8:49pm by Sophie

Physical Edu
The principle of progressive overload is described by an improvement in physical fitness which requires a gradual increase in physical activity and working the body beyond accustomed levels. is it True
Tuesday, June 12, 2012 at 7:54pm by Andy

Chemistry
What type of reaction is involved in the making of Polypropylene? Would it be a synthesis reaction? The final step is a polymerization reaction. Before that, the propylene (C3H6) is made in a cracking reaction from heavier hydrocarbons. Thank you. :)
Sunday, January 21, 2007 at 12:00pm by Lisa

Physical Science
Are you balancing these by inspection or by redox methods? I assume by inspection this early in the course. I will do the first one and you do the others. Al + N2 ==> AlN Rule 1. You may NOT change any of the subscripts. You MAY change coefficients ONLY. By inspection, we ...
Tuesday, September 11, 2007 at 11:20pm by DrBob222

chemistry
So I posted this question yesterday and was told I had a few typos.... I fixed them and here is the question again... Please help me!!! A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are...
Tuesday, January 5, 2010 at 5:26pm by amy

chemistry
Choose all of the following statements about the equilibrium constant K that are true: (a) If the K value for a reaction is > 1 then Go must be negative for this reaction (b) A large value for K implies there is a strong driver for the reaction to proceed in the forward ...
Sunday, March 28, 2010 at 4:33am by James

chemistry
2. Bromine can be added to limonene to create a brominated compound. The balanced equation is shown below. When 613 mg of limonene and 3.5 mL of a 10% (v/v) solution of Br2 in dichloromethane (a solvent) are combined, 959 mg of the product is isolated. Calculate the percent ...
Tuesday, February 23, 2010 at 12:51am by Grace

Chemistry
2C6H6(l) + 15O2 (g) ---> 12CO2 (g) + 6H2 (l) Calculate the deltaHrxn using standard heats of formations from Appendix C, paying close attention to the physical states of substances. Thanks!
Monday, April 30, 2012 at 12:12pm by Julio

chemistry
A balanced equation that represents an overall cell reaction is shown. Choose the cell notation which corresponds to the electrochemical cell that is described by this equation. a) Sn2+(aq) + 2Cu+(aq) → Sn4+(aq) + 2Cu(s) b) Pt(s) l Sn2+(aq), Sn4+(aq) ll Cu+(aq) l Cu(s) c...
Tuesday, November 15, 2011 at 8:07pm by Bob, NEED YOUR HELP

Chemistry
They don't. Oxygen, in the free state, (such as in air that you and I breathe) is zero charged. So is the nitrogen in the air, in the free state. In fact, ALL elements in the free state (uncombined with anything) have a zero charge and a zero oxidation state. One "valence ...
Wednesday, February 13, 2008 at 4:50pm by DrBob222

Chemistry
indeed it is +6. From this compound, there are several things you can get out from it: The Iron must be Fe(III) and not Fe(II). The net charge = 0 so 2Fe(III) = +6 so 3(SO4)must = -6 so (SO4) must = -2 Oxygen = -2 because it only contains 6 valence electron (missing 2 to be ...
Wednesday, November 21, 2007 at 11:01am by Jake1214

Desperate to understand ionic/net equa.-Chemistry
When the following solutions are mixed together, FeSO4 (aq) + Csl (aq): What precipitate if any will form, Write the balanced equation, write the complete ionic equation and write the net ionic equation?
Friday, April 13, 2012 at 9:26pm by ASA

chemistry
LiOH and NaOH can each react with CO2 to form the metal carbonate and H2O. These reactions can be used to remove CO2 from the air in a spacecraft. a. Write a balanced equation for each reaction. b. Calculate the grams of NaOH and of LiOH that remove 288 g CO2 from the air. c. ...
Wednesday, June 2, 2010 at 6:04pm by mikey d.

Biochemistry
Hi, In this task for our school, we were requested to investigate a method for testing the amount of caffeine content in coffee. There are 3 main questions as fellows 1. What would be a good method to measure the amount of caffeine in coffee without extracting it? 2.What is ...
Monday, February 8, 2010 at 6:37pm by Dave

Chemistry 2
It won't do any good for me to give you the answers. First, let's write the equation. I2(g) + heat ==> 2I(g) Now, Le Chatelier's Principle says that the reaction will shift so as to undo what is done to it. 1. I atoms are added. That increases I on the right, the reaction ...
Wednesday, July 14, 2010 at 9:01pm by DrBob222

chemistry redox titration
Write the equation and balance it. mols C2O4^2- = M x L = ? Using the coefficients in the balanced equation, convert mols oxalate to mols permanganate. Then M MnO4^- = mols/L. You know M and mols, solve for L.
Sunday, April 8, 2012 at 9:33pm by DrBob222

chemistry(check my work)
If 6.01 g of K2SO3 dissolved in 930 mL of water reacts stoichiometrically according to the balanced equation in a reaction solution with a total volume of 990 mL, what is the molarity (M) of KCl produced? K2SO3(aq) + 2 HCl(aq) → SO2(g) + 2KCl(aq) + H2O(l) 6.01gx ...
Saturday, April 3, 2010 at 1:01am by eng

Chemistry
A balanced equation for CuSO4+NaCl--> ???
Tuesday, November 20, 2007 at 7:53am by B Hlock

chemistry
what is the balanced formulea equation for water evaporating
Monday, October 27, 2008 at 1:34pm by lila

Chemistry
What is the balanced equation for the preparation of cis-1,2-cyclohexanediol???
Wednesday, November 5, 2008 at 9:35am by Andrew

chemistry
If you wrote the balanced chemical equation you know the answer.
Friday, January 23, 2009 at 6:35pm by DrBob222

chemistry
IT seems to me that I would start with the balanced equation.
Monday, February 2, 2009 at 3:51am by bobpursley

AP chemistry
what is the balanced equation of Aluminum + Koh
Thursday, October 15, 2009 at 10:55pm by Lilly

chem
What three things does a balanced equation show you
Saturday, March 20, 2010 at 6:58pm by wendy

chemistry
The 2 and 3 are coefficients in the balanced equation for O2 and CO2
Monday, April 19, 2010 at 10:58am by DrBob222

balanced equation
c2o4 has a charge of -2 so it's only + 1e-, not 2
Sunday, April 29, 2007 at 6:49pm by Anonymous

Chemistry
What is the balanced equation of the complete combustion of 2-methylpropane?
Thursday, October 28, 2010 at 8:46pm by Chioma

Chemistry
What do you not understand? Can you write the balanced molecular equation?
Sunday, April 8, 2012 at 10:33pm by DrBob222

chemistry
balanced equation of cucl2.2h2o+na2so3
Monday, November 14, 2011 at 9:04am by luyolo

chemistry
How is this equation balanced Al2(OH)3 S3 (s) + 3H2O (l) --->
Sunday, October 21, 2012 at 5:01pm by What?

Chemistry
What is the balanced equation? I cant figure out the answer
Sunday, September 29, 2013 at 12:39pm by Julie

Chem simple question
The equation must be balanced.
Sunday, September 29, 2013 at 5:56pm by DrBob222

Chemistry 120
Balanced equation of Al2O3 + HF
Saturday, October 6, 2012 at 1:36pm by susy

Physics
Oxygen for hospital patients is kept in special tanks, where the oxygen has a pressure of 62.0 atmospheres and a temperature of 293 K. The tanks are stored in a separate room, and the oxygen is pumped to the patient's room, where it is administered at a pressure of 1.00 ...
Tuesday, January 6, 2009 at 6:34pm by Z

chemistry
With all gases one may use a shortcut by using liters and not converting to moles. 1. Write and balance the equation. 2. Using the coefficients in the balanced equation, convert 12.8 L O2 to liters CO2.
Monday, December 19, 2011 at 3:18pm by DrBob222

Chemistry
what is the overall neutralization reaction equation and the net ionic equation for potassium hodrogen sulphate and sodium hydroxide. Need help with my hmwk thank you
Wednesday, December 22, 2010 at 6:46pm by Tarkan

Chemistry
3.25g of zinc was added to 50cm^3 of a 4.0 molar dm^-3 HCl. When the reaction was completed the temperature rose by 28 degrees celcius. (a) Is the reaction exothermic or endothermic? (b)All the zinc dissolve in this reaction. How many moles of zinc reacted? (c) How many moles ...
Monday, March 24, 2014 at 9:20pm by Jessica

Chemistry
at 298 k, the Henry's law constant for oxygen is 0.00130 M/atm. Air is 21.0% oxygen. at 298 k, what is the solubility of oxygen in water exposed to air at 1.00 atm?
Tuesday, July 12, 2011 at 6:03pm by Josh

Science
Steel wool [iron] is burned in the presence of oxygen in the air and makes iron oxide: is this a combination, decomposition, or replacement reaction?
Wednesday, April 14, 2010 at 8:53pm by Christopher

chemisrty
how many liters of oxygen can be produced at stp from the decomp. of .25 liters of 3M H2O2 ACCORDING TO THE REACTION 2H2O-2 H2O+O2
Saturday, November 24, 2012 at 6:59pm by chris

chem2
1. Calculate mols HCl initially. mols = M x L. 2. Calculate mols HCl at the end of the reaction. 3. Subtract and that is mols HCl used. 4. Using the coefficients in the balanced equation, convert mols HCl to mols Zn. 5. Convert mols Zn to grams Zn. mols x molar mass = grams. ...
Monday, September 22, 2008 at 3:01pm by DrBob222

Chemistry
One example is the burning of a candle. The wax, which is a hydrocarbon, doesn't burn at room temperature because the reaction to form CO2 and H2O is so slow. But heated up with a match (which overcomes the activation energy), the reaction is exothomeric and produces enough ...
Tuesday, February 19, 2008 at 7:46pm by DrBob222

chemistry
A. Find and list all of the different half- cell combinations. Hint 15 combinations! 1. Copper/ Cu2+ 2. Lead/ Pb2+ 3. Magnesium/ Mg2+ 4. Zinc/ Zn2+ 5. Iron/Fe2+ 6. Aluminum/ Al3+ B. write the half reactions of each combination and the overall redox reaction. Please help! Thank...
Wednesday, May 8, 2013 at 3:45pm by Chloe

chemistry
Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according to the following equation: CH4(g)+H2O(g) = CO(g) + 3H2(g) In a particular reaction, 26.5 L of methane gas (measured at a pressure of 736 torr and a temperature of 25 C ) is ...
Monday, October 13, 2008 at 1:57am by Lili

chemistry
a vessel has 6 g oxygen at a pressure P & temp 400 K . a small hole is made in it so that oxygen leaks out . how much oxygen leaks out if the pressure is P/2 & temperature 300 K ? 1. 5g 2. 4g 3. 2g 4. 3g
Friday, December 19, 2008 at 1:10pm by hriday

chemistry
a vessel has 6 g oxygen at a pressure P & temp 400 K . a small hole is made in it so that oxygen leaks out . how much oxygen leaks out if the pressure is P/2 & temperature 300 K ? 1. 5g 2. 4g 3. 2g 4. 3g
Wednesday, December 24, 2008 at 11:58am by hriday

Science
According to http://consumerist.com/2008/07/are-fireworks-legal-in-my-state.html Ther entire state of New York currently bans "consumer fireworks", INCLUDING sparklers. Same for New Jersey and three other states. In most states, local rules apply.
Wednesday, June 15, 2011 at 7:42pm by drwls

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
Saturday, July 30, 2011 at 3:29am by Piom

chemistry
A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are as follows: 10FeSO4 + 5 H2SO4 --> 5 Fe2(SO4)3 + 10 H ^+ +10e^- and 2 KMnO4 + # H2SO4 +10e^- --> 2 MnO4 + K2SO4 + 8 H2O. The gram...
Tuesday, January 5, 2010 at 11:27am by amy

Chemistry
How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I've concluded the answer is 0.02 moles of H2, but I'm doubting myself a lot because I don't understand the aspects of the balanced chemical equation and how that affects the...
Saturday, October 22, 2011 at 8:42pm by Martin

science grade 9
That is a good answer, but it does seem too simple to me. But maybe it really is a simple question. I might just add that when plants use CO2 they produce sugars and oxygen. And since oxygen is abundant in the atmosphere then perhaps the concentration of oxygen remains ...
Thursday, November 26, 2009 at 8:12pm by Jalen

Chem
This is the problem: In a 1-L beaker, 203 ml of 0.307 M ammonium chromate was mixed with 137 ml of 0.269 M chromium (III) nitrite to produce ammonium nitrite and chromium (III) chromate. Write the balanced chemical reaction occuring here. If the percent yield of the reaction ...
Monday, October 30, 2006 at 8:05pm by Anonymous

SCIENCE
Florida's resources include lots of beaches, pleasant weather, the Everglades, and many resorts, including Disney. I read the other day that Florida was the only one of the states without any snow on the ground.
Sunday, January 23, 2011 at 2:52pm by Ms. Sue

Government
In our democracy, it's the states' citizens who determine the extent of the governors' powers. I don't know of any situation in which I would change these policies. However, please check for other answers -- including from our Texas tutors.
Saturday, February 26, 2011 at 4:00pm by Ms. Sue

chemistry
You carefully measure 20.00 of powder and add it to 81.00 of solution in a reaction flask of known mass. You notice bubbles as a reaction takes place. You then determine that the contents of the flask have a mass of 92.80 . The relevant equation is Assuming no other reactions ...
Saturday, February 25, 2012 at 6:59pm by 211504463

College Chemistry
I work limiting reagent problems just like I do regular stoichiometry problems, except that I work each reactant separately. First Fe and we assume we have all of the O2 needed. We use the coefficients in the balanced equation to make the conversions. 0.5 mol Fe x (2 mol Fe2O3...
Monday, March 26, 2012 at 9:21pm by DrBob222

Chemistry
Based on the information I gathered from those sites, I think that oxidation states are chemical properties. So would all the others be physical properties?
Saturday, November 29, 2008 at 9:12pm by Anonymous

social studies
Think of way other than by physical characteristics to divide the united states into regions.Describes the locations and features of the regions.
Wednesday, December 2, 2009 at 6:39pm by ada

Chemistry
Adding Ag^+ ppts the Cl^- as AgCl thereby removing Cl^- from the equation. Therefore the reaction will try to replace the Cl^- that has been removed and it does that by the reverse (shift to the left) reaction.
Sunday, April 8, 2012 at 9:28pm by DrBob222

CHEM
Could you please tell me if these are right? Write an equation for the following reactions. Write the correct formulas of the reactants and products. Then correctly balance each equation. A.) Potassium and oxygen gas react to form potassium oxide. I got K+O2=KO2 B.) Sodium and...
Friday, October 15, 2010 at 7:38pm by Chris

scince
Chemical changes change a bond structure, such as burning paper in oxygen to create carbon dioxide and water. Physical changes are reversible and dependent on conditions, like melting ice.
Thursday, January 3, 2013 at 3:37pm by Shaira

Chemistry
Write the equation and balance it. You can take a shortcut and use L as mols in an all gaseous equation. Use the coefficients in the balanced equation to convert L HCl to L O2. L O2 = L HCl x (?mol O2/?mol HCl) = ?
Wednesday, February 22, 2012 at 11:26pm by DrBob222

science
We're all doing the same hw! lmao. Okay guys, I'm gunna help :) The chemical change is the wax, as it heats the flame vaporises and this vapour travels up the wick. The phsical change is the wick, when flame is applied to wick this wax is melted and vaporised... -A physical ...
Friday, October 20, 2006 at 2:34pm by Lucy

Orgo
First of all, what on earth is ORGO? Try the following: http://www.google.com/search?hl=en&client=firefox-a&rls=org.mozilla:en-US:official&hs=wzs&ei=5wACS47OF8HcnAfJ-ICgCw&sa=X&oi=spell&resnum=0&ct=result&cd=1&ved=0CAYQBSgA&q=structure+of+magnesium+salt+created+as+a+byproduct+...
Monday, November 16, 2009 at 6:27pm by SraJMcGin

physical science
An oxygen gas tank has a volume of 8 L and a pressure of 1500 N/m2. If the temperature decreases from 2500 K to 2000 K and its volume increases to 24 L, what is its final pressure?
Monday, December 26, 2011 at 12:18am by Samantha

Chemistry
H2 and F2 react according to the following equation, forming HF. H2(g) + F2(g)  2HF(g); H = 271 kJ If H2(g) and F2(g) were mixed in a thermally insulated vessel, the reaction that occurred would be a. endothermic, and the temperature of the reaction system ...
Tuesday, July 2, 2013 at 8:01pm by Kayla

chemistry
State whether each of the following will increase,decrease or unchange when catalyst is added to the reaction and give an explanation for your answer please a) rate of reaction b)activation energy c)reaction enthalpy d)equilibrium of reaction
Saturday, July 9, 2011 at 1:00pm by Gift

Chemistry
Tiffany, Assuming the reaction runs to completion and there is an excess of Al you know that Bromine is your limiting reagent. Stoichiometry will give you the amount of AlBr2 produced. You begin with 7.9 mol Br2 to cancel the moles of Bromine and find moles of Aluminum Bromide...
Saturday, November 3, 2012 at 1:12pm by andrew

science
why the United States has been so slow to adopt metric measurements. What problems does this cause for the United States? What benefits might it bring the United States? How might you resolve the gap between the United States' measurement system and that of the rest of the ...
Wednesday, March 4, 2009 at 4:23pm by Lee Lee

Chemistry
That is Hess' Law. IT states that the heat of reaction is equal to the sum of the heats of formations of the products minus the heats of formation of reactions. Example 2HNO3 + Fe >> Fe(NO3)2 + H2 (g) The heat of reaction is equal to the heat of fromation of IronII ...
Sunday, December 14, 2008 at 5:21pm by bobpursley

Chem
Write the balanced net ionic equations for the reaction of a) added H+ and B) added OH- with the components of the acetic acid/sodium acetate buffer solution:
Wednesday, February 9, 2011 at 1:12pm by Bubba

chem
write the balanced reaction: 3Ca+2H3PO4 >> 3H2 + Ca3(PO4)2 looks like 3/2 * 8.87 moles of Ca
Thursday, May 12, 2011 at 12:06am by bobpursley

in-organic chemistry
provide balanced equations that represent the thermal decomposition of sodium nitrate and calcium nitrate; compare and comment on the products of each reaction.
Saturday, August 27, 2011 at 1:08pm by bulelwa

chemistry
What is the molar solubility of Sr3(AsO4)2 and the concentration of Sr^+2 and AsO4^-3 in a saturated solution at 25C? the Ksp is 1.3 E -18. Show the balanced reaction.
Sunday, June 10, 2012 at 3:11pm by Chloe

Chemistry
Consider the hypothetical reaction between A2 and AB pictured below. (picture of eight AB molecules and four A2 molecules in one box -> eight molecules of A2B molecules in another box) What is the balanced equation? If 2.50 mol A2 is reacted with excess AB, what amount (...
Monday, September 18, 2006 at 4:54am by chris

chemistry
Doing review for an exam and I can't find how to do this problem in my notes. 2 SO2 + 2 Cl2 -----> 2 SOCl2 + O2 from a previous problem I solved: rate=k[SO2]^2[Cl2] k = 467.666666... or in sig. figs 467 Energy reaction: T= 25 C The activation energy (Ea) is 35.0kJ/mole ...
Wednesday, July 13, 2011 at 8:52pm by energy diagram

chemistry
Doing review for an exam and I can't find how to do this problem in my notes. 2 SO2 + 2 Cl2 -----> 2 SOCl2 + O2 from a previous problem I solved: rate=k[SO2]^2[Cl2] k = 467.666666... or in sig. figs 467 Energy reaction: T= 25 C The activation energy (Ea) is 35.0kJ/mole ...
Thursday, July 14, 2011 at 12:34am by energy diagram

chem
Because the oxide ion is basic, metal oxides react readily with acids. (a) Write the net ionic equation for the following reaction. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) FeO(s) + 2 HClO4(aq) Fe(ClO4)2(aq) + H2O(l...
Monday, October 29, 2012 at 10:19am by rebekah

chemistry
Yes, the reaction, if it occurred, is a double replacement and you have written it correctly and balanced it. HOWEVER, it will not react and you should have written it like this. NaCl + CuCO4 ==> No reaction or as NR. Reactions occur for one of four reasons. 1. a gas is ...
Tuesday, January 20, 2009 at 7:28pm by DrBob222

the big idea of energy
? Im doing an assessment right now about explaining what happens when Magnesium burns- i've gotta get a Level7....:( In one of the coloums it says " Explain the reaction by using The Big Idea Of Energy" What does that MEAN? I need serious help NOW! thanks
Tuesday, December 5, 2006 at 2:18pm by not saying!

the big idea of energy
? Im doing an assessment right now about explaining what happens when Magnesium burns- i've gotta get a Level7....:( In one of the coloums it says " Explain the reaction by using The Big Idea Of Energy" What does that MEAN? I need serious help NOW! thanks
Tuesday, December 5, 2006 at 2:18pm by not saying!

HARD chemistry
A solution of ferrous sulfate (FeSO4) is titrated with a solution of potassium permanganate in sulfuric acid. The balanced half reactions are as follows: 10FeSO4 + 5 H2SO4 --> 5 Fe2(SO4)3 + 10 H ^+ +10e^- and 2 KMnO4 + # H2SO4 +10e^- --> 2 MnO4 + K2SO4 + 8 H2O. The gram-...
Monday, January 4, 2010 at 5:22pm by Amy

chemistry
how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2. Convert what you have...
Sunday, September 24, 2006 at 9:06pm by brian

social studies
The Union was the United States during the Civil War. Secession was the act of the Confederate States who withdrew from the United States.
Tuesday, April 27, 2010 at 10:13pm by Ms. Sue

chemistry
What is the complete ionic equation for the double displacement reaction: CuNO3(aq) + K2S(aq)= what is the chemical name and formula of this chemical reaction? plsss. need help
Wednesday, October 3, 2012 at 4:25pm by shay

Chemistry
You need to correct the equation. 2H2 + O2 ==> 2H2O 65.00 g H2O = how many moles? 65/18 = xx moles H2O. moles oxygen = 1/2 moles H2O, then convert to grams oxygen. moles H2 = same as moles H2O, convert to grmas hydrogen. You must have
Wednesday, October 13, 2010 at 2:11pm by DrBob222

chemistry
Write and balance the equation. [A] = [Ao]-akt [Ao] is the beginning cncn. k is given t is time. a is the coefficient in the balanced equation. t1/2 = [Ao]/2ak
Monday, March 26, 2012 at 1:41am by DrBob222

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...
Tuesday, April 3, 2012 at 10:53am by turner

Chemistry
can anyone check and see if i balanced the equation for the combustion of benzene correctly, thank you. C6H6 + O2 --> CO2 + H2O Answer: C6H6 + 15O2 --> 6CO2 + 3H2O It doesn't look right to me; however, you can check ALL balanced(?) equations and know when you are right ...
Tuesday, August 7, 2007 at 9:53pm by Anonymous

Chemistry
In a redox equation, if something is reduced another something must be oxidized. In the reaction of Al with KOH: Al + KOH ==> Al(OH)4^- + H2 (not balanced) The Al has an oxidation state of zero on the left and +3 on the right. Oxidation is the loss of electrons. Reduction ...
Thursday, August 13, 2009 at 1:04pm by DrBob222

chemistry
I don't get the C6H6+, Br2+ and C6H4B42+. Why the + signs? You don't have them in the reaction. Convert 15.0 g benzene to mols. mols = grams/molar mass. Use the coefficients in the balanced equation to convert mols benzene to mols of the bromobenzene. Now convert these mols to...
Thursday, November 1, 2012 at 12:36am by DrBob222

chem
A voltaic cell consists of a strip of cadmium metal in a solution of Cd(NO3)2 in one beaker, and in the other beaker a platinum electrode is immersed in a NaCl solution, with Cl2 gas bubbled around the electrode. A salt bridge connects the two beakers. Write the equation for ...
Saturday, April 13, 2013 at 3:38pm by sarah

physics urgent help !
if a 3e charge is at the origin and a magnesium nucleus is 3 cm from the originin the x-axis direction.what is the magnitude of the net electrostatic force a Boron nucleus would experience at the point half way between magnesium nucleus and 3e charge on the y-axis in N
Monday, November 11, 2013 at 4:13am by james

Chemistry
You have the reaction right, however, oxygen does not join the chlorine. Things are oxidation or reduction because electrons detach and move from species to species.
Wednesday, May 16, 2012 at 8:45pm by bobpursley

chemistryy
The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.
Friday, May 18, 2012 at 1:06pm by bri

chemistryy
The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.
Friday, May 18, 2012 at 1:08pm by bri

Chemistry
what volume of oxygen is needed to react with solid sulfur to form 6.20 L of sulfur dioxide according to the reaction S(s) + O2(g) yield SO2(g)
Wednesday, May 22, 2013 at 2:35pm by Anonymous

chemistry
Based on the balanced equation 2I2O5 + 10NO → 5N2O4 + 2I2 calculate the number of excess reagent units remaining when 188 I2O5 molecules and 850 NO molecules react? do i start with a new balance equation in order to solve it
Wednesday, February 10, 2010 at 2:03am by eng

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