Chemistry Forum

the problem is one of the products bcuz (SO4)-2 ion and Fe(3+)ions when react they make Fe2(SO4)3 not Fe(SO4)3 ; after criss-crossing the charges.. so your final reaction would beeee...

2 Fe(OH)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O

hope that helps..

-Sharan

heyy this is correct
2 NaOH + CuSO4 = Na2SO4 + Cu(OH)2

-Sharan

Yes you are right. So in your case, you start balancing with carbon C which in the right side would be 2CO2 and den you have 6 hydrogens on the left side so you put 3 on the right side so it wud become 3H2O now count oxygen on the right side, it is 2CO2 + 3H2O so total of 7 oxygens. Now the problem ...

Its pretty hard to explain :| atleast for me you can try going to this website and getting some help... http://richardbowles.tripod.com/chemistry/balance.htm#part1 and this one also good which actually i think is praticial http://www.lrc.centennialcollege.ca/tutorserv/HowtoBalanceaChemicalReaction.h...

Lets start with general case, There is an element with some atomic mass and atomic number. So now, this atomic number is the first thing you are going to look at. Because the atomic number is going to tell you how many electrons and protons are there in 1 atom of element. You have 3 cases, Case 1: N...

Hey yeah part of the equation is correct you require Na2SO4 not NaSO4 and secondly you are writing H20 (*you are using zero not O for oxygen) it is H2O
2 NaOH + H2SO4 = Na2SO4 + 2 H2O


-Sharan

Heat absorbed is equal to = Mass x specific capacity of the substance x temperature change Therefore ur answer would be= 420 x 4.2 (for water) x 43= 75852 joules or 75.852 KJ You should note that even though specific heat caapcity of water is in terms of Kelvin but we didnt not change the temperatur...

I dont know the problem in first one
2nd- Al2(SO4)3 + 3 Ca(OH)2 = 2 Al(OH)3 + 3 CaSO4
(you were forgeting the () around hydroxide OH

3rd- Al2(SO4)3 + 6 NaHCO3 = 2 Al(OH)3 + 3 Na2SO4 + 6 CO2
again same problem

4th- Mg3N2 + 6 H2O = 3 Mg(OH)2 + 2 NH3
once agian same problem lol

-Sharan

3 Mg(OH)2 + 2 (NH4)3PO4 = Mg3(PO4)2 + 6 NH3 + 6 H2O
there you go the only reason why you cudnt balance it was that you were not putting brackets () around OH in MgOH2 ..

-Sharan

I guess you should ask this question in the senior section since most of the people that use this section of forum are only high school and undergradutees of university . I would suggest to make in post in chemistry advertising section or maybe in scientific disscusion. I hope that helps a little in...

In order to answer that question you have to know the state of copper as copper has two states (I) and (II) , if copper is in (I) your answer would be Cu2S oor if in (II) it would be CuS BUt in case you are not given with anything assume its (I) and your answer would be Cu2S.. since thats more commo...

np now there are poor half reactions left to talk about (jus joking !!) i had hoped if anyone else would have answered but its okie i can try that one too,,, In order to understand half reaction you have to know where half reactions occur and what is a half reaction.. half reactions are the part of ...

Pb(NO3)2 + 2KI = 2 KNO3 + PbI2


-Sharan

Heyyy YES Barium Chlorate is soluble in water... well ummm you shud identify the difference between chloride and chlorate .. dey are two entirely opposite terms,, in terms of chemsitry but coinceidently all chlorates are also soluble in water except for only sodium perchlorate .. i hope that answers...

Okie umm lets try it.. There are two types of ions that are present in an electrolyte (electrolyte is like a solution that is containing ions in free form)-- one that gets used in the reaction or in other words, the ions that are present in the reactant sides are no longer in the prodcuts instead in...