Search: chemistry(balance equation)

Number of results: 123,468

chemistry(balance equation)
hi!i am a f4 student in hk.i have know the basic concept of balance equation.but some too complex equation i cant balance.is there any general short cut for balancing any simple or complex chemical equation?
Thursday, January 19, 2012 at 10:50am by kate

Chemistry Balancing
To balance an equation For example if the equation was CaOH2 + HCl ---> CaCl2 + H20 the question is , if i want to balance , should i count the OH ( hydroxide ) as a whole thing or seperately so the O goes with the other oxygens and the H goes with the other hydrogens ...
Tuesday, December 25, 2007 at 6:27am by Mary Lame

Chemistry
any suggestions? This is not a home work answer site it is a home work help site. If you can't balance the equation then balance the equation in the following order balance C atoms on RHS balance H atoms on RHS balance O atoms on LHS
Monday, October 12, 2009 at 6:48am by Dr Russ

Science
I am learning how to balance a chemical equation but I don't understand it at all. I read that in order to balance the equation, you need to find the number of atoms. How do I do that? How do you balance a chemical equation?
Thursday, February 16, 2012 at 7:57pm by Michael

Chemistry
hi I'm having a serious problem with balancing chemical equations , can someone explain to me how we can do them also if i had a word equation hhow can i convert it into a symbolic equation and balance it e.g can someone show me how we do this equation: KOH3+HNO3 ---}( ...
Monday, December 24, 2007 at 7:05am by Simon Lodge

Chemistry
Balance the equation. Cu + HNO3 --> Cu(NO3)2 + NO2 + H2O I'm having a little trouble getting this equation to balance. Thank you in advance! :)
Monday, April 16, 2012 at 8:27pm by Lindsey

chemistry
First, you must balance the equation. (I assume you must balance the equation; it doesn't make sense to list mol ratios for equations that won't work.) Then you look at the coefficients of the material in the equation. Fe2O3 + 3CO ==> 2Fe + 3CO2 Now, carbon ...
Friday, February 29, 2008 at 4:11pm by DrBob222

Chemistry
How do I balance this equation. When 11.7 grmas of iron and 212.7 grams of chlorine gas completely react, iron (III)chloride, FeCl3 is formed. Balance the equation. Could someone please be kind enough to help me with this?
Thursday, July 10, 2008 at 9:02pm by PP

college chemistry
No, I don't think so. First, the problem asks for the two balanced half equations. You have given the balanced equation. Second, the balanced equation you have written is not balanced. For example, Fe = 2 on the left and 6 on the right. H atoms don't balance. Cl atoms ...
Monday, October 25, 2010 at 12:14pm by DrBob222

Chemistry
One of the major problems you are having with this and any other equation is that you are tying to balance the equation by making the products match the number of atoms. That isn't the way to do it. Step 1. Write the equation. Use valences (oxidation states) to determine ...
Tuesday, November 3, 2009 at 12:34pm by DrBob222

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 ...
Thursday, March 4, 2010 at 9:24pm by Amanda

Chemistry
Balance the equation: _MnO4– + _H+ + _Fe2+ => _Mn2+ + _H2O + _Fe3+ How do you do balance this redox reaction?
Thursday, July 3, 2008 at 3:30pm by Tom

Chemistry
For each reaction, complete and balance the equation and give the net ionic equation. a) KOH(aq)+ZnCl2(aq)-> KCl2+ZnOH The second half of the equation is how i had done on the exam but he said its not balanced. How do I balance this? How would it look. I keep trying but...
Wednesday, November 10, 2010 at 4:12pm by Jess

Chemistry+balancing equation tips
We are on combustion reaction at the moment in chemistry, and I have to say, these reactions are like extremely hard to balance(well, just alot of erasing). It takes me a while to balance combustion reactions and I want to know if theres any tips in balancing them? Should I ...
Thursday, February 19, 2009 at 5:48pm by Chopsticks

chemistry
I understand how to balance the rest of the equation, but I just don't understand how to balance the Fe^+2 and Fe^+3 ions on both sides of the equation.
Monday, June 29, 2009 at 8:00pm by DSL

chemistry
how to balance a complicated chemical equation.explain with a example.tell me a shortcut to balance complicated chemical equation.
Monday, September 24, 2012 at 10:52am by J.Nandhini

chemistry(balance equation)
thank you very much,your teaching really makes me a good start. then how about balance S +H2SO4 ---> SO2 +H2O ??
Thursday, January 19, 2012 at 9:54pm by amper

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 12
a) Use the standard reduction potentials table to balance the following redox equation: H2O2 + I + H = H2O + I2 b) Balance the following redox equation by the oxidation number method: Ag + HNO3 = AgNO3 + NO + H2O
Tuesday, May 24, 2011 at 4:04pm by Laura

Chemistry
Balance the following redox equation by the oxidation number methode Ag + HNO3 = AgNO3 + NO + H2O I have all the oxidation numbers i just don't understand how i'm supposed to balance it according to them. I read the sites and i can't get it. Do i balance out each ...
Saturday, May 28, 2011 at 10:30pm by Amber

chemistry(balance equation)
How to balance HNO3 +Cu ------->Cu(NO3)2+NO+H2O ? please show me steps
Thursday, January 19, 2012 at 9:54pm by kate

chemistry
don't quite understand why this isn't balanced and what we'd have to do to balance it and why. If someone could explain in-depth I would appreciate it. Balance this equation: C2H5OH(l) + O2(g) >>>>> CO2(g) +H20(g) Show that the ...
Wednesday, May 2, 2012 at 9:05pm by Kaelan

Chemistry
balance the equation. I bet you get four moles of CO2 and 5 moles of water for each mole of butane. If that is true, then you must use 4O2+5(1/2O2) of oxygen, or 6.5 moles O2 for each mole of butane. So you had .340moles, and that multiplied by 6.5 is ... Balance the equation ...
Friday, September 9, 2011 at 7:37pm by bobpursley

chemistry
Using the change-in-oxidation-number method, balance the redox reaction below. Show your work; partial credit will be given. NO2– + MnO4– → NO3– + Mn2+ Figure out which atoms’ oxidation numbers are changing, and by how much. Balance the equation ...
Friday, April 27, 2012 at 10:23am by Anonymous

Chemistry
Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and aqueous potassium phosphate, K3PO4. Balance the net ionic equation, including phases, for this reaction.
Sunday, April 7, 2013 at 2:20am by Unknown

chemistry
balance the following equation, and identify the type of reaction. ZnSO4+SrCl2-> i think it's a double replacement reaction. But could someone please help me balance it. I'm not sure how.
Sunday, July 18, 2010 at 2:58pm by v.c

chemistry(balance equation)
Thank you DrBob, but i am only a form 4 student in hk,i havent learnt about anything of redox.is there any SUPER SHORT CUT for balance simple and complex equation?in fact i have asked several people,some of them said that take LCM of the atom counts,but i dont know take which ...
Thursday, January 19, 2012 at 9:54pm by amper

chemistry
Balance the equation in aqueous acidic solution: IO-(aq) + I-(aq) → I2(s) i know you have to add either water or H+ but i cant seem to balance it out thanks for the help!!
Saturday, November 12, 2011 at 7:44pm by Balancing Equations

Chemistry
I think the intent of question 1 is for the answer to be coefficients. For question 2, doesn't an equation balance when the number of atoms on the left side equals the number of atoms on the right side? The molecules don't need to balance but the atoms must balance.
Saturday, April 18, 2009 at 11:37am by DrBob222

IT
print "enter balance" read balance payment = balance/36 balance = balance-payment print balance balance = balance-payment print balance You probably will want to add some text to indicate what the printed numbers mean, but that wasn't stated in the assignment ...
Wednesday, September 5, 2012 at 9:47am by Steve

chemistry
Goodness. Just write the combustion equation and balance. Balance this C10H16O+ O2 >>>CO2 + H2O
Monday, December 8, 2008 at 11:52pm by bobpursley

GK or Dr.Bob222...Chemistry please help...
I think the equation posted for equation #1 is incorrect. You balance it and see what you get. However, you can see, can't you, that it isn't balanced because the charges don't balance on both sides of the equation. I have ClO^- + 2I^- + 2H^+ ==>H2O + I2 + ...
Thursday, October 23, 2008 at 6:30pm by DrBob222

chemistry
Write and balance the equation. It should look something like this. Ca(OH)2 + H2 ==> CaH2 + H2O You balance. Delta Hrxn = (n*delta H products)-(n*delta H reactants)
Sunday, January 9, 2011 at 12:56pm by DrBob222

Chemistry
None unless you do it right? Do you have an equation? Writ and balance the equation. Using the coefficients in the balanced equation, convert moles O2 to moles Br2.
Monday, March 15, 2010 at 8:48pm by DrBob222

chemistry
I don't know that you do. The only thing I would do is to convert the word equation to the corresponding chemical equation, then balance that.
Thursday, March 1, 2012 at 6:36pm by DrBob222

chemistry
The unbalance equation would be Fe(OH)3 ---> Fe2O3 + H2O still working on the balance equation
Tuesday, October 4, 2011 at 9:21pm by Broy

Chemistry
Can someone balance this equation using the half-reaction equation method? OF2 + I^- ----> F^- + I3^-
Thursday, February 21, 2008 at 9:15pm by Anonymous

Chemistry
That is 100% correct. I don't balance them this way but ONE way is to balance in acidic soln (since you can do that already, then add OH^- to each H^+ (and to keep the equation balanced you add OH^- to the other side).
Tuesday, May 31, 2011 at 6:26pm by DrBob222

chemistry
How do I balance this equation. Give the complete or "molecular" equation for the predicted partner exchange reaction. FeCl3 and NH3
Monday, September 12, 2011 at 1:57am by Anonymous

algebra
In February, you have a balance of $270 in your bank account. Each month you deposit $45. Let January = 1, February = 2, and so on. Which equation models this situation? Use the equation to find the balance in June.
Saturday, November 12, 2011 at 2:38pm by marouf

Chemistry equation balancing
I have to balance the following equation using the lowest number of coefficients CH4 + NH3 + O2 -- HCN + H2O I can get N,C and O to balance as follows CH4 + NH3 + O2 -- HCN + 2H2O I can get H,C and N to balance as follows CH4 + NH3 + 2O2 -- HCN + 3H2O I just can't seem to ...
Wednesday, May 23, 2007 at 5:29am by Anna

Chemistry - DrBob222
No. I don't remember the exact equation but I know the one I wrote for you that evening was correct. This one, the C has an oxidation state of -2 (4H=+4, 1 O = -2 so C must be -2) in CH3OH. It goes to zero on the other side with CH2O so it loses 2 electrons. Mn changes ...
Wednesday, February 20, 2008 at 6:40pm by DrBob222

Chemistry
There are two ways to balance an equation, by inspection or by a maths method. Al2(CO3)3--> Al2O3+CO2 This particular equation is easly balanced by inspection. There are 3 C atoms on the LHS so to balance this we need a 3 on the RHS as below. Al2(CO3)3--> Al2O3+...
Wednesday, November 17, 2010 at 6:55am by Dr Russ

Chemistry
I don't quite understand why this isn't balanced and what we'd have to do to balance it and why. If someone could explain in-depth I would appreciate it. Balance this equation: C2H5OH(l) + O2(g) >>>>> CO2(g) +H20(g)
Wednesday, May 2, 2012 at 9:05pm by Kaelan

Chemistry II
I cannot balance this equation and I am really struggling. Cr2O7^2-(aq)+ Cu^+(s)-->Cr^3+(aq)+Cu^2+(aq) How do I get the charges to balance?
Tuesday, April 27, 2010 at 7:58pm by Carl

chemistry homework
Write the equation and balance it. There is a shortcut you can use, since reactants and products are gases, that allows you to equation the coefficients to liters directly.
Thursday, May 15, 2008 at 7:08pm by DrBob222

Chemistry
Balance the equation in aqueous basic solution: NO2-(aq) + Al(s) → NH3(aq) + AlO2-(aq) I know how to balance equations in acidic solutions, but I get lost doing the basic one, please help?
Tuesday, May 31, 2011 at 6:26pm by Jessie

Chemistry
? CaSO_4 + AlCl_3 ---> CaCl_2 + Al_2(SO_4)_3 How do I balance this equation so that there are the same number of sulfate ions on both sides of the equation?
Saturday, September 19, 2009 at 7:14am by Cory

Chemistry
My teacher says the correct way to predict/balance the equation AL+HCL yields H+AlCl3 is to balance it like this: 2Al+6HCl yields 3H2+2AlCl3. I don't get why there is a two in front of the AlCl3. Could you guide me through the logic of this please?
Tuesday, April 21, 2009 at 5:14pm by Angeline

CHemistry
Redox equations are often long and difficult to balance by inspection. Luckily, electron transfers and oxidation numbers provide hints for balancing such equations. Balance the following equation: K2CrO4 + Na2SO3 + HCl ---> KCl + Na2SO4 + CrCl3 + H20
Tuesday, April 13, 2010 at 6:54pm by Katelynn

Chemistry
Balance the equation in aqueous basic solution: As2S3(s) + H2O2(aq) → AsO43-(aq) + SO42-(aq) I normally understand how to balance redox equations, but this one confuses me because I would normally think that the As2S3 is being reduced to AsO4^3-, but since the As2S3 ...
Sunday, June 5, 2011 at 4:35pm by Joanne

chemistry
Write the equation, determine the the atoms of chronoum metal, and then from the balaced equation the number of electrons to balance the equations. amps= 1/chargeonelectron * total charge /time
Wednesday, April 23, 2008 at 1:03am by bobpursley

chemistry
I need help on a balance ionic equation in chemistry Ca(NO3)2 + NaOH
Sunday, January 27, 2013 at 10:39am by Anonymous

Chemistry
The Ni/Cd equation is balanced. a. atoms balance. b. charge balances. c. gain and loss of electrons balance. For the other one, Mn goes from +7 on the left to +2 on the right for 5e gained. Al goes from zero on the left to +3 on the right for 3 electrons lost. The LCD for 5 ...
Sunday, April 25, 2010 at 10:05pm by DrBob222

Chemistry
Yes, I know you must use the half reaction method to balance the equation. I put a 2 as the coefficient of I- but I'm not sure how to divide the equation into two reactions since there are only 3 parts.
Sunday, August 26, 2007 at 7:58pm by Anonymous

Chemistry
What are you asking for? To balance the equation
Tuesday, February 9, 2010 at 6:42pm by Priscilla

Chemistry
Write the equation and balance it. Then use the coefficients in the balanced equation to convert mols C6H12O6 to mols CO2 needed.
Tuesday, June 12, 2012 at 4:42pm by DrBob222

chemistry
The combustion of 38.5g of C2H6 with excess oxygen. Find the equation, balance equation and find the mass of each product
Thursday, December 16, 2010 at 7:17pm by hbluefrost

chemistry
balance the equation. doesn't the balanced equation indicate 5 moles of water? how many grams is that? the density of water is 1gram/cc, so what volume is that?
Thursday, May 6, 2010 at 9:56pm by bobpursley

chemistry
Balance the following equation: K2CrO4+Na2SO3+HCl--->KCl + Na2SO4+CrCl3+H2O Enter the coefficients for each compound, separated by commas, in the order in which they appear in the equation (e.g., 1,2,3,4,5,6,7).
Friday, November 2, 2012 at 10:49am by Angie

Chemistry
balance the equation first.
Friday, May 20, 2011 at 8:04pm by bobpursley

Chemistry 130
No on 7). Balance the equation.
Tuesday, September 8, 2009 at 1:27pm by bobpursley

chemistry
Balance equations by ion-electron method Step 1. Determine oxidation states of each element and focus on those that change from left side to right side. Step 2. Multiply, as appropriate so that the number of atoms you are considering are the same; e.g., Cr2O7^2- ==> Cr^...
Tuesday, November 22, 2011 at 5:27pm by DrBob222

College Chemistry
I am assuming its a liquid. My question is writing the chemical equation. What is the chemical equation? Is it C6H6 + O2 ---> CO2 + H2O? And if so how do I balance it?
Sunday, September 25, 2011 at 5:57pm by Jenny

chem
Of course the 2 and 5 coefficients balance only the redox part of the equation. You must still balance the H^+ and H2O by inspection.
Monday, July 7, 2008 at 2:10am by DrBob222

balance equation
NaPO4 + PbNO3 = what? balance
Thursday, February 26, 2009 at 6:10pm by Stephanie

Chemistry
Balance equation c2h3cl + br2
Thursday, January 3, 2013 at 3:40pm by Cris

chemistry
need help to balance this equation please
Tuesday, August 14, 2012 at 4:10pm by mellie

Chemistry
Write the equation and balance it. Do that first.
Saturday, March 17, 2012 at 8:47pm by DrBob222

chemistry
Write the equation and balance it. What is rtp?
Thursday, February 23, 2012 at 9:56am by DrBob222

Chemistry
What is the balance equation for: (NH4)3 + MgCl2
Thursday, February 24, 2011 at 9:35pm by Adrionna

Chemistry
If the purpose is to balance the equation, it is balanced.
Tuesday, October 13, 2009 at 4:53pm by DrBob222

Chemistry
You have to balance the equation first.
Wednesday, October 7, 2009 at 9:06pm by bobpursley

chemistry
Consider the following double displacement reactions. For each reaction, complete and balance the equation and give the net ionic equation. NH4Cl(aq)+Ca(NO3)2(aq) -> NH4(NO3)2+CaCl the second half of the equation is what I had done but I think its not right...
Thursday, November 11, 2010 at 1:59pm by Riley

College chemistry
Need help balancing chemical equation. Complete and balance the chemical equation. Be sure to include the states of the reactants and products. C3H8(g)+O2(g) →
Friday, May 4, 2012 at 1:49am by Lance

chemistry
In a word equation there are no charges. Perhaps you put it in chemical form and convert back to balance word equation. I'm not familiar with this phrasing so you need to review your notes.
Thursday, March 1, 2012 at 6:36pm by DrBob222

Chemistry Help!!!
First you write the equation, then balance it. Ba(OH)2(aq) + 2HNO3(aq) ==> Ba(NO3)2)aq) + 2H2O(l) Next you use the coefficients in the balanced equation (that's why you write and balance the equation FIRST) to convert mols HNO3 to mols Ba(OH)2. 2.5 mol HNO3 x [1 mol...
Monday, March 26, 2012 at 9:27pm by DrBob222

Chemistry
write the balance equation. Determine the moles of H2 (from PV=nRT). Use the coefficents of the balanced equation to determine how many moles of ammonia are made. I assume you are just starting chemistry, in reality, it is much more complicated that this, as that reaction does...
Monday, April 5, 2010 at 8:52pm by bobpursley

chemistry
Here is a chemical equation: CH4 + O2 ¨ CO2 + H2O 1. Balance this chemical equation. State what type of chemical reaction this is. What will accompany the products as a result of this reaction? Discuss how your balanced chemical equation agrees with the law of ...
Monday, January 9, 2012 at 6:13pm by help

Chemistry
For each reaction, complete and balance the equation and give the net ionic equation. a) KOH(aq)+ZnCl2(aq)-> KCl2+ZnOH Oops theres the question...
Wednesday, November 10, 2010 at 4:55pm by Jess

chemistry
Write the equation and balance it. Use the coefficients in the balanced equation to tell you what the ratio is and use logic to determine mols CO2 produced. Post your work if you get stuck.
Wednesday, April 9, 2008 at 2:09pm by DrBob222

CHEMISTRY
Here is a chemical equation: CH4 + O2 ¨ CO2 + H2O 1. Balance this chemical equation. 2.State what type of chemical reaction this is. 3.What will accompany the products as a result of this reaction? 4.Discuss how your balanced chemical equation agrees with the law of ...
Monday, January 9, 2012 at 6:29pm by PLEASE HELP!!!!

chemistry
balance the equation c2h4(g)+o2(g)---c(s)+h2o
Friday, January 25, 2013 at 9:51am by jacque

Jennifer
How to balance the following equation: I2 + Cl- = ?
Wednesday, November 28, 2012 at 3:08pm by Chemistry

Chemistry..please help!
Write the equation of lime n balance it!
Saturday, June 16, 2012 at 12:56am by Gidix

Chemistry..please help!
Write the equation of lime n balance it!
Saturday, June 16, 2012 at 12:52am by Gidix

Chemistry..please help!
Write the equation of lime n balance it!
Saturday, June 16, 2012 at 12:50am by Gidix

Chemistry..please help!
Write the equation of lime n balance it!
Saturday, June 16, 2012 at 12:43am by Gidix

Chemistry
Write the elements and balance the equation for lime.
Friday, June 15, 2012 at 9:29pm by Gidix

chemistry
balance the equation: Io^3 + I yield H2O + I^2
Tuesday, March 13, 2012 at 3:12pm by faith

Chemistry
You didn't balance the equation and you didn't make the coefficients the exponents.
Saturday, March 3, 2012 at 10:25pm by DrBob222

chemistry
How do you balance a chemical reaction word equation?!
Thursday, March 1, 2012 at 6:36pm by Lacey

chemistry
Write the equation and balance it; follow the coefficients.
Saturday, October 16, 2010 at 9:12pm by DrBob222

chemistry
Balance acidic equation PbO2 and Pb
Wednesday, September 29, 2010 at 10:02pm by Anonymous

Intro to Chemistry
How do balance this equation K2S+CuSO4
Thursday, October 8, 2009 at 2:30pm by Ariel

Chemistry
You are given the reactants, and products. Balance that equation.
Thursday, May 15, 2008 at 5:17pm by bobpursley

Chemistry
You need to show the 9H2O on the LHS, from then on balancing it should be straight forwward. Balance the La atoms on the LHS then balance the Cl atoms on the RHS. Then balance the Na atoms on the LHS and you should find the oxalates will then already balance.
Friday, October 9, 2009 at 12:50am by Dr Russ

chemistry
Thanks for your help DrBob but the equation given is the one my teacher gave us. I just balanced it and I am not sure where I went wrong. I understand how to do the rest of the problem. I just need help to balance the equation.
Monday, March 8, 2010 at 9:49am by Shannon

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