What is the reaction when you add sodium carbonate in mgnesium chloride?
813421
Na2CO3(aq) + MgCl2(aq) --> 2NaCl(aq) + MgCO3(aq)
952146
The first part of the question gives you the information you need to determine the "calorimeter constant", or the amount of heat required to change the temperature of the whole calorimeter set-up by 1 degree.\n\nThe calcium carbonate/HCl stuff is the reaction whose enthalpy change you are trying to determine, using the same calorimeter as before.  When you combine calcium carbonate and HCl, you'll get a reaction that produces CO2 and leaves you with a solution of calcium chloride.  So the overall reaction that you're looking at is:\n\nCaCO3 + 2 HCl --> CO2(g) + H2O + CaCl2\n\nCalcium carbonate will only decompose to CO2 and CaO when you heat it--not when you react it with an acid.\n\nHope this helps....I'll let you do the calculations.
481911
H2, or hydrogen gas.\n\nFor example, take magnesium metal and hydrochloric acid.\n\nMg + 2HCl -> H2 + MgCl2\n\nThis is a displacement reaction, in which a free element (Mg) breaks the bond between a compound (HCl) and then bonds to the ion with the opposite charge (Cl-) forming a new compound (MgCl2).  The ion left over (H+) loses its charge and becomes a pure element (H2).
290781
MgSO4(s) + 2HCL(aq) ---> H2SO4(aq) + MgCl2 (aq)
793702
Firstly,\nNaCl dissociates into Na+(aq) + Cl-(aq)\n1faraday of charge is required to produce 23 g Na from molten NaCl .\ntherefore production of 100000 g of Na will require charge = \n(1/23)*1000000 Faradays = 43478.26 Faradays = 43478.26 * 96500 C      [ as 1F = 96500 c]\n=4.1956 * 10^9 C\nBut, Q=IT \nso, T=Q/I = (4.1956 * 10^9)/300000 = 13.9855 * 10^3 secs = 3.88486 hrs.
429534
manesiun and fluorine....magnesium forms a positively charged ion, while fluorine forms a negatively charged ion, different charges attract, so they form ionic bond to each other forming a ionic compound.\n\nnitrogen and sulphur both form negative charged ions, so there is noway to make them react unless in a prescence of a catalyst.\n\nionic compounds generally fom using, metals and nonmetals. magnesium is a metal, and fluorine nitrogen and sulphur are all non metals
857082
1.  Split up the elements and give them their original charges\n\nAg +\nNO3 -\nK +\nBr -\n\n2.  Combine an element with an element that they were not with, putting them side by side will help\n\nAg + with Br -\nNO3 - with K +\n\n3. So now you have 2 new compounds\n\nAgBr & KNO3-\n\n4.  Their should be a chart in your book that tells you which compound would be the precipitate but i don't think their is a precipitate for this reaction'\n\nso both will dissolve in a solution
50281
This is an acid base reaction, but the other answer is incorrect about the product. There is no Cl present. Here’s the balanced equation:\n\n2NaOH (s) + H2CO3 (aq) ➔ Na2CO3 + 2H2O\n\nNaOH is the base. H2CO3 is the acid.
179839
It depends on the salt. A salt of calcium, magnesium, or iron will form an insoluble compound that will precipitate with a soap molecule that is known as soap scum.\n\nHere is a typical reaction:\nCa2+(aq)  + 2C17H35COO-(aq)  ==> (C17H35COO-)2Ca2+(s)\n\nSodium chloride will not form a precipitate with soap as long as the soap is a carboxylate.\nhttp://dl.clackamas.cc.or.us/ch106-04/structur1.htm
136146
The 1st answer is wrong. The reaction is\n\nNa2CO3(aq) + SrCl2 (aq)--> 2NaCl (aq) +SrCO3 (s)
124214
carbonate + acid = salt + carbon dioxide + water, so:\n\nsodium carbonate + sulphuric acid = sodium sulphate + carbon dioxide + water.
152231
I believe it's sodium chloride
600936
Na2CO3 + 2HCl -> 2NaCl + CO2 + H2O\n\nno. of mol of Na2CO3 reacted\n= m/M\n= 1.5/106.2\n= 0.01412 mol\n\nno. of mol of HCl reacted\n= 95/1000 x 6\n= 0.57 mol\n\nsince Na2CO3 is the limiting reagent, the no. of mol of CO2 liberated = 0.01412 mol\n\nMass of CO2 liberated\n= 0.01412 x 44.01\n= 0.6214g\n\nVol. of CO2 gas \n= 0.6214 x 1.96\n= 1.217\n= 1.22g (3s.f.)
896646
"The final experiment was to observe the reaction when one small crystal of NH4SCN was added to 0.1 M FeCl3. The color of FeCl3 was yellow, but after NH4SCN was added, the color of contents changed to red.\nIn second experiment, when the Mg was ignited, the resulting flame was hot. Therefore, the release of thermal energy through the interaction of Mg and O was shown.\nFiguring out the type of the last two reactions was difficult, because the chemical equations were not given. However, the possibility that the type of both reactions were replacement reactions was high. The reason being that the chemical reactions were observed as a color change and this means that the composition of the substance is changed.\nThis experiment was very successful, and it was a good opportunity to observe chemical reactions directly."\n\nI would change your paragraph to that.  I would also expand on the other experiments if you know more about them.
433273
Na2CO3 + 2HCl = CO2 + H20 + 2NaCl (aq)\n\nThis reaction is a double displacement reaction because oxygen from the sodium carbonate combines with the hydrogen in the hydrochloric acid to form water, and the sodium goes with chlorine to form sodium chloride, making carbon dioxide in the process.
1093944
i) add NaNH2(1 eq.)  then CH3I(1 eq.) (I=iodine)then NaNH2(1 eq.)  then C2H5I then add hydrogen in presence of palladium and BaSO4.\nii)add NaNH2(1 eq.) then C3H7I(1 eq.)  then add NaNH2(1 eq.)  then again C3H7I(1 eq.) then add ZnBr2 or MgBr2.
735055
a) Sodium stearate, a soap, forms a scum on bath tubs and shower screens with either magnesium, calcium or iron(II), as these salts are insoluble. For example:\n\n2CH3(CH2)16COONa  +  Mg^2+  ---> (CH3(CH2)16COO)2Mg  + 2Na^+\n\nb) Adding dilute HCl acid to soap, produces a greasy solid, which has its uses in cosmetics:\n\nCH3(CH2)16COONa  +  HCl  --->  CH3(CH2)16COOH  +  NaCl\n\nI hope that helps. If you need more assistance, please email me or re post.