Who can balance this chemical equation? HCl+ Ca (OH) *subscript*2-----> CaCl+H *subscript* 2O?
Q. need it quick
Asked by Amber L - Thu Apr 24 22:31:00 2008 - - 1 Answers - 0 Comments

A. 2HCl(aq) + Ca(OH)2(aq)===>CaCl2(aq) + 2H2O(l)
Answered by Johnny D - Thu Apr 24 22:35:31 2008

Balance the following equation: Ca(OH)2 + HCl = CaCl2 + H2O?
Q. Balance the following equation: Ca(OH)2 + HCl = CaCl2 + H2O?
Asked by so sad - Fri Mar 6 04:46:12 2009 - - 3 Answers - 0 Comments

A. Ca(OH)2 + 2HCl --> CaCl2 + 2H2O
Answered by unknown - Fri Mar 6 05:12:53 2009

Ca(OH)2(aq) + HCl(aq) which are true for this equation?
Q. a) Water is a product b) When balanced the coefficient of HCl(aq) is 3 c) Ions cannot appear in the net ionic equation because they always cancel out on both sides of the equation d) OH-(aq) does not appear in the net ionic equation e) Cl -(aq) does not appear in the net ionic equation
Asked by christy - Wed Apr 16 19:26:58 2008 - - 1 Answers - 0 Comments

A. Ca(OH)2 + 2HCl >> CaCl2 + 2H2O net ionic 2H+ + 2OH- >> 2H2O a is true
Answered by Dr.A - Thu Apr 17 05:41:19 2008

if it takes 45.3mL of 1.50M Ca(OH)2 to neutralize 25.0mL of HCl, what is the molarity of the acid?
Q. what is the balanced equation how to do calculations i have no idea to help my son answer this question
Asked by marciee lee - Sun Apr 12 22:26:44 2009 - - 1 Answers - 0 Comments

A. Ca(OH)2 + 2HCl --> CaCl2 + 2H2O 45.3 mL x 1.50 M Ca(OH)2 = 67.95 mmol Ca(OH)2 67.95 mmol = 0.06975 mol Ca(OH)2 1 mole Ca(OH)2 requires 2 moles of HCl 2 x 69.75 = 135.9 mmol HCl required 25.0 mL x HCl molarity = 135.9 mmol HCl molarity = 5.436 M ANSWER: 5.44 M
Answered by skipper - Sun Apr 12 22:35:15 2009

what volume of 0.1209M HCl is necessary to neutralize 0.5462 grams of Ca(OH)2?
Q. please show the work and balanced chemical equation!! thanks in advanceee!!
Asked by dee j - Tue Oct 30 00:32:04 2007 - - 1 Answers - 0 Comments

A. 2 HCl + Ca(OH)2 >> CaCl2 + 2H2O Moles Ca(OH)2 = 0.5462 g / 74 = 0.00738 Moles HCl needed = 2 x 0.00738 = 0.0148 V = moles / M = 0.0148 / 0.1209 = 0.122 L = 122 mL
Answered by Dr.A - Tue Oct 30 04:58:55 2007

I need help balancing an equation?
Q. Here is the equation HCl + Ca(OH)2->CaCl2 + H2O the big 2s are subscripts If you could show me how you got the answer that would be great
Asked by Am - Wed Mar 4 16:10:15 2009 - - 2 Answers - 0 Comments

A. * Whenever there is a number in front of a symbol or set of symbols, then all the numbers AFTER it are multiplied by that number. * HCl + Ca(OH)2->CaCl2 + H2O * In this equation, the HCl and Ca(OH)2 make: 3 H 1 Cl 1 Ca 2 O * Balance your equation. On the other side you have: 2 Ca 2 Cl 2 H O * What do you need to multiply in order to get the same amount of each element on both sides. * Multiply the first H by 2 in order to get two on both sides. 2HCl + Ca(OH)2->CaCl2 + H2O * Now there are 2 Cl because the 2 is distributed to the Cl as well as H. This is balanced on the other side. * Place a 2 next to the last H20 so there are 4 H on both sides. 2HCl + Ca(OH)2->CaCl2 + 2H2O -This automatically gives you the 2 O you need on the… [cont.]
Answered by <3 maria <3 - Wed Mar 4 16:35:24 2009

How to complete this equations?
Q. I need to complete and balance a lot of acid-base (neutralization) equations. My only problem is I've been out of chemistry too long and I cannot figure out how to complete the equation. HCl + Ca(OH)2 = ? (I need this side in order to balance it) I've tried to find something online, but have had no success. Can someone explain how complete the other side of this equation so I can balance it. Please explain step by step so I understand?
Asked by Blue - Wed Aug 29 20:53:33 2007 - - 3 Answers - 0 Comments

A. The easiest way to determine the products in an acid base reaction is to make water and something else. In your reaction, take the hydrogen from HCl and OH from Ca(OH)2, and then combine what is lest over. In your reaction, it would be CaCl2. So the balanced equation would be: 2HCl + Ca(OH)2 ---> 2H2O + CaCl2
Answered by Lance - Wed Aug 29 21:12:22 2007

Bio 1 Balancing Equations HELP?
Q. Here is the Equation: HCl + Ca(OH)(subscript 2) yeilds CaCl(subscript 2) + H(Subscript 2) O And thats Cl like chlorine, how do i balance it? Well I know how, but i dont get it, so whats the answer?
Asked by ohligschlager2007 - Sat Sep 29 22:34:59 2007 - - 3 Answers - 0 Comments

A. 2 in front of HCl and 2 in front of water
Answered by cleveland - Sat Sep 29 22:48:22 2007

Balancing chem equation?
Q. the question says: write a balanced equation for the reactions a. HCl(aq)+Ca(OH)2(aq) ---> anyone know what the aq is? and what the outcome is like? how is one to know if it is an acid or a base? something to do with the charge?
Asked by jei - Sun Nov 2 22:48:00 2008 - - 3 Answers - 0 Comments

A. 2HCl(aq)+Ca(OH)2 => CaCl2(s)+2H2O(l) aq means that it is in liquid form
Answered by Adam - Sun Nov 2 22:54:01 2008

Identify the products and write a balanced equation for the following neutralization reaction?
Q. HCl(aq) + Ca(OH)2(aq) --->
Asked by Brad - Mon Jun 5 21:35:01 2006 - - 3 Answers - 0 Comments

A. Think of the net ionic equation which is occuring. Since both the HCl and Ca(OH)3 are dissolved in aqueous solution, broken into ions, just focus on the H+ and OH- part of it first. H+(aq) + OH-(aq) --> H2O(l) The Hydronium ion and the Hydroxide ion react to form water. What is left over are the Ca+2 and Cl- ion which drop out of the net ionic eqaution since they form the very soluble compound, Calcium Chloride (CaCl2). 2 HCl (aq) + Ca(OH)2 (aq) --> 2 H2O (l) + CaCl2 (aq)
Answered by mrjeffy321 - Mon Jun 5 22:00:41 2006

I can't balance this science equation... help!?
Q. Here it is, can you help me : HCl + Ca(OH)2 ---> H2O + CaCl Usually I can do them, but not this one! Thanks you were right AJ thanks!
Asked by Loxchocoxlo - Mon Jun 15 08:06:22 2009 - - 2 Answers - 0 Comments

A. The reason why you can't balance the equation is because Ca has a positive charge of +2. Therefore, CaCl2. try now =D HCl + Ca(OH)2 ---> H2O + CaCl2
Answered by AJ - Mon Jun 15 08:10:59 2009

How do I dilute the 2mol.dm^-3 HCl?
Q. I did this practice titration experiment at school-but i'm confused about how I diluted the HCl. "You are provided with 250 cm^3 of limewater such that it contains approx 1g per dm^3 of calcium hydroxide. Also available is hydrochloric acid which has a concentration of exactly 2.00 moles per dm^3. This is too concentrated to be used and you will need to dilute it. You are to plan an investigation which will allow you to determine the concentration, in grams per dm^3, of the limewater as accurately as possible." I've worked out the balanced equation for the reaction is Ca(OH) 2 + 2HCl ---> CaCl 2 + 2H 2O so the reacting ratio is 1:2:1:2 I know that, if theres 1g per dm^3 of Ca(OH) 2, then I must find the number of moles per gm^3: Moles=M [cont.]
Asked by Anonymus - Sat Feb 3 14:49:41 2007 - - 1 Answers - 0 Comments

A. I doesn't have to be exactly 0.27...M. A reasonable concentration would be 0.0200M, and you could very easily do this by pipetting (accurately) 1.00ml of 2.00M HCl into a 100ml volumetric flask, and diluting it up to the mark. This will dilute the HCl by a factor of 100, which is what you want.
Answered by Gervald F - Sat Feb 3 14:57:41 2007

How would I balance these chemical equations?
Q. 1) _Ca(OH)2 + _HCl --> _CaCl2+ _H2O 2) _C4H10 + _O2 --> _CO2 + _H2O 3) magnesium + oxygen --> magnesium oxide (Is it Mg2 + O2 --> MGO?) I don't know when you're supposed to use the subscripts.
Asked by inukag_fantasy - Sat Feb 21 13:50:32 2009 - - 1 Answers - 0 Comments

help me please??? chemistry?
Q. calculate the mass of the water in Kg if 2.55 X 10^25 formula units of ca(OH) are reacted with 1.15 Kg of HCl the balanced equation is 2HCl+Ca(OH)2==> CaCl2= 2H2O please show work!!!
Asked by NEED HELP PLEASSSEEE!!!!!!!!!!!! - Thu May 28 20:32:59 2009 - - 1 Answers - 0 Comments

A. moles Ca(OH)2 = 2.55 x 10^25 / 6.02 x 10^23 =42.4 moles HCl = 1150 g /36.461 g/mol=31.5 ( limiting reactant) moles H2O = 31.5 mass H2O = 31.5 x 18.02 =568 g = 0.568 Kg
Answered by Dr.A - Fri May 29 08:28:05 2009

Balance these equations: Part 2?
Q. Mg+Cl2=MgCl2 Rb+RbNO3=Rb2O+N2 C6H6+O2=CO2+H2O N2+H2=NH3 C10H22+O2=CO2+H2O Al(OH)3+HBr=AlBr3+H2O CH3CH2CH2CH3+O2=CO2+H2O C+O2=CO2 C3H8+O2=CO2+H2O Li+AlCl3=LiCl+Al C2H6+O2=CO2+H2O NH4OH+H3PO4=(NH4)3PO4+H2O Rb+P=Rb3P CH4+O2=CO2+H2O Al(OH)3+H2SO4+Al2(SO4)3+H 2O Na+Cl2=NaCl Rb+S8=Rb2S H3PO4+Ca(OH)2=Ca3(PO4)2+H 2O NH3+HCl=NH4Cl
Asked by guru andrew - Thu May 7 10:59:03 2009 - - 1 Answers - 0 Comments

A. Come on man you cant expect us to do your homework for you
Answered by unknown - Thu May 7 11:13:47 2009

Are the following word, skeleton and balanced equations written correctly?
Q. If there are any mistakes, please correct them. Thank you in advance for your help. Silver nitrate solution reacts with sodium chloride solution to produce a precipitate. AgNo3 (s) + NaCl (aq) --> NaNO3 (aq) + AgCl(s) (already balanced) Hydrochloric acid reacts with calcium carbonate to produce a gas. HCl (aq) + Ca (CO3)2 (aq) --> CaCl2(aq) + H20(l) + CO2(g) Balanced equation : 2HCl (aq) + Ca (CO3)2 (aq) CaCl2(aq) + H20(l) + 3CO2(g) Copper reacts with Silver nitrate solution to produce Silver and Copper Nitrate. Cu(s) + AgNO3 --> Ag + CuNO3 Or Cu + 2AgNO3 --> 2Ag + Cu(NO3) Calcium Oxide reacts with water to produce a base. CaO + H20--> Ca(OH)2 (already balanced)
Asked by Breska H - Mon May 5 19:23:56 2008 - - 1 Answers - 0 Comments

A. HCl (aq) + CaCO3(aq) --> CaCl2(aq) + H20(l) + CO2(g) Cu(s) + AgNO3 --> Ag + CuNO3 only these need doing and correcting
Answered by **PiNoY YFC** - Mon May 5 19:39:33 2008

Help!! Chemistry: Balancing equation ?!?
Q. In a beaker cotaining 100 mL of water, equal # of moles of HCL and Ca(OH)2 are mixed. The resulting solution contains mainly whic of the following? -water, H+, Cl-, Ca 2+, and OH- ions -water, HCl, and Ca(OH)2 -water, Cl-, Ca 2+, and OH- ions -water, Cl-, Ca 2+, and H+ ions -water and CaCl2 -water, Cl-, Ca 2+ ions
Asked by Makaila - Tue Apr 7 22:56:29 2009 - - 3 Answers - 0 Comments

A. I think A since its a substitution reaction and would give calcium chloride and water, and the water would dissociate to give H+ and OH- ions.
Answered by sleepi321 - Tue Apr 7 23:02:00 2009

10 points best answer! Complete and balance each of the equations for acid-base reactions.?
Q. If someone could help me fill in the blanks then balance the equations. (a) HBr(aq) + LiOH(aq) --> (aq) + (l) (b) Ca(OH)2(aq) + HCl(aq) --> (aq) + (l) (c) H2SO4(aq) + Ba(OH)2(aq) --> (l) + (s)
Asked by qwerty - Mon Sep 29 16:14:51 2008 - - 3 Answers - 0 Comments

A. (a) HBr(aq) + LiOH(aq) --> LiBr(aq) + H2O(l) (b) Ca(OH)2(aq) + HCl(aq) --> CaCl2(aq) + 2(H2O)(l) (c) H2SO4(aq) + Ba(OH)2(aq) --> BaSO4(l) + 2(H2O)(s) [[chem_whiz]]
Answered by [[chem whiz]] - Mon Sep 29 16:27:28 2008

a question about this equation please help?
Q. Which of the following statements are true for the reaction Ca(OH)2(aq) + HCl(aq) a) CaCl(aq) is a product b) When balanced the coefficient of HCl(aq) is 3 c) Only ions appear in the net ionic equation d) Ca(OH)2(aq) appears in the net ionic equation e) H2O(l) appears in the net ionic equation
Asked by sovietwarhawk - Tue Nov 20 17:22:33 2007 - - 2 Answers - 0 Comments

A. balanced equation: Ca(OH)2 + 2 HCl --> CaCl2 + 2 H2O ionic equation: Ca2+ + 2 OH- + 2 H+ + 2 Cl- --> Ca2+ + 2 Cl- + 2 H2O eliminating the same ions in the LHS and RHS (Ca2+ and Cl-), we get the net ionic equation: 2 OH- + 2 H+ --> 2 H2O therefore the true statements are: a, e
Answered by j.investi - Tue Nov 20 17:27:48 2007

Complete and balance each of the following equations for gas-evolution reactions?
Q. Complete and balance each of the following equations for gas-evolution reactions. Express your answer as a chemical equation. Identify all of the phases in your answer. 1) HNO3(aq) + Na2SO3(aq) 2) HCl(aq) + KHCO3(aq) 3) HC2H3O2(aq) + NaHSO3(aq) 4) (NH4)2SO4(aq) + Ca(OH)2 (aq)
Asked by kkkk - Mon Feb 9 02:52:07 2009 - - 1 Answers - 0 Comments

A. 1) 2HNO3(aq) + Na2SO3(aq) 2NaNO3 (aq) + SO2 (g) + H2O (l)' 2) HCl(aq) + KHCO3(aq) KCl (aq) + CO2 (g) + H2O (l) 3) CH3COOH (aq)+ NaHSO3(aq) CH3COONa (aq) + SO2 (g) + H2O (l) 4) (NH4)2SO4(aq) + Ca(OH)2 (aq) CaSO4 + NH3 (g) + H2O (l)
Answered by somdyuti - Mon Feb 9 07:29:53 2009