barium nitrate and ammonium carbonate balanced equation

As a next step, lets balance H again by putting a 2 in front of NaOH so the equation reads: You might wonder why we didn't instead increase the number of H2 molecules. :`x-a ,X 'c90hV7D#Vd{t${g`HzEN*FV a KMnO4 + b HCl = c KCl + d MnCl2 + e Cl2 + f H2O. (b) Calculate the percent yield if 10.0 g of P4O10 is isolated from the reaction. Get a free answer to a quick problem. Silver nitrate and Potassium chromate How would you recommend memorizing which ions are soluble? Posted 6 years ago. Want to cite, share, or modify this book? We went from 1 unbalanced element to multiple. OpenStax is part of Rice University, which is a 501(c)(3) nonprofit. dissolved in the water. The purpose of balancing chemical equations is to ensure this is the case. 4) 3 (aq) + Ba(NO. What is the balanced equation of decomposition of ammonium nitrate? The balanced equation will appear above. This does not have a high Ammonium carbonate and Barium chloride 2. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. So this makes it a little So when compounds are aqueous, unlike in solids their ions get separated and can move around ? Write the Balanced equation. If we count up the number of atoms again, we have 4 H and 2 O on both sides, but there is 1 sodium atom on the left side, and 2 sodium atoms on the right side. The principal component of mothballs is naphthalene, a compound with a molecular mass of about 130 amu, containing only carbon and hydrogen. BA< . What if we react NaNO3(aq) and AgCl(s)? are formed. NaHCO3(aq)+HCl(aq)NaCl(aq)+CO2(g)+H2O(l)NaHCO3(aq)+HCl(aq)NaCl(aq)+CO2(g)+H2O(l), What volume of 0.08892 M HNO3 is required to react completely with 0.2352 g of potassium hydrogen phosphate? The aqueous ammonia assures that the concentration of carbonate ion will be high enough by preventing the hydrolysis of carbonate ion to form hydrogen carbonate ion: \[\ce{NH3(aq) + H2O(l) <=> NH4^{+}(aq) + OH^{-}(aq)}\], \[\ce{CO3^{2-}(aq) + H2O(l) <=> HCO3^{-}(aq) + OH^{-}(aq)}\]. Ammonium carbonate and Barium chloride 2. But the silver chloride is in solid form. form, one it's more compact and it's very clear what Well it just depends what First, lets put a 2 in front of H2O: Notice how the 2 in front of H2O is "distributed" to both the H2 and the O. 0 videos 5. What is the concentration of NaCl in a solution if titration of 15.00 mL of the solution with 0.2503 M AgNO3 requires 20.22 mL of the AgNO3 solution to reach the end point? Direct link to Eudora Sheridan's post How would you recommend m, Posted 5 years ago. Now why is it called that? We now have 4 H, 2 O and 1 Na atom on the left, but 3 H, 1 O and 1 Na atom on the right. citation tool such as, Authors: Paul Flowers, Klaus Theopold, Richard Langley, William R. Robinson, PhD. Except where otherwise noted, textbooks on this site As was mentioned before, we knew we had to update multiple coefficients to balance the hydrogen atoms. The reactions that describe the decomposition of ammonium carbonate (#(NH_4)_2CO_3#) are: #(NH_4)_2CO_3(s) -> NH_4HCO_(3(s)) + NH_(3(g))# (1) Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo). nitrate stays dissolved so we can write it like this If you get stuck, click the links to use our chemical equation balance calculator to see the balanced result and the four easy steps to get there: In reactions involving many compounds or elements (usually both! hmo6 Potatoes can be peeled commercially by soaking them in a 3-M to 6-M solution of sodium hydroxide, then removing the loosened skins by spraying them with water. How do you identify the type of reaction based on the chemical equation? Nitrobarite is a crystalline solid white in colour. The first letter of each element should be capitalized, and any following must be lowercase. In these cases, you need to predict the products or reactants (tip: our balancing chemical equations calculator can usually work as a chemical equation product calculator if just the reactants are entered). 4 (s) + Al(NO. Barium nitrate reacts with ammonium carbonate to yield barium carbonate and ammonium nitrate. As we predicted, and as can be seen in the table above, we still need to balance H and O. B. Most compounds containing the bromide ion are soluble, but lead (II) is an exception. Direct link to RogerP's post Yes, that's right. substitution, elimination, reduced row echelon forms, gauss-jordan elimination, or a calculator) to get through to the next step of solving for each unknown: Since we want the result to have the smallest integer coefficients, f needs to be the lowest common multiple of the denominators of each coefficient in the other equations, which in this case is 8. to dissolve in the water and so are the nitrate ions. Stoichiometric coefficients go before each substance (if omitted, it means 1). Balanced Reaction Solution Names ex: 2NaCl (aq) + Pb (NO3)2 (aq) -> 2NaNO3 (aq) + PbCl (s) 1. No, we can't call it decomposition because that would suggest there has been a chemical change. To help we've compiled a list of common reactions to balance: C2H5NH3Cl + Ba(OH)2 = BaCl2 + H2O + C2H5NH2, Balance Using Inspection + Linear Systems, Calcium Carbonate (CaCO3) + Hydrochloric Acid (HCl) Calcium Chloride (CaCl2) + Carbon Dioxide (CO2) + Water (H2O), Iron + Hydrogen Chloride = Ferrous Chloride + Hydrogen Gas: Fe + HCl FeCl2 + H2, Zinc + Hydrogen Chloride = Zinc Chloride + Hydrogen Gas: Zn + HCl ZnCl2 + H2, Sodium (Na) and Water (H2O), which releases heat, Sodium Hydroxide (NaOH) and Hydrogen Gas (H2), Combustion of Methane and Oxygen: CH4 + O2 = CO2 + H2O, Copper (Cu) and Nitric Acid (HNO3) into Copper(II) Nitrate (Cu(NO3)2) + Nitrogen Dioxide (NO2) + Water (H2O), Iron + Hydrochloric Acid = Ferric Chloride + Hydrogen Gas: Fe + HCl FeCl3 + H2, Aluminium + Sodium Hydroxide + Water = Sodium Aluminate + Hydrogen Gas: Al + NaOH + H2O = NaAlO2 + H2, Zinc + Hydrogen Chloride = Zinc Chloride + H2 Gas: Zn + HCl ZnCl2 + H2, Potassium Permanganate (KMnO4) + Hydrogen Chloride (HCl) = Potassium Chloride (KCl) + Manganese(II) Chloride (MnCl2) + Dichlorine (Cl2) + Water (H2O), K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO, Sodium Chloride (Table Salt) Dissolves in Water: NaCl + H2O = Na. well you just get rid of the spectator ions. Calculate the mass of oxygen required to react with 28.8 g of ammonia. {1N0w]fN;abXb8tZf9a/1{ysk M>stream In a chemical reaction, the quantity of each element does not change, meaning both sides of the equation must represent the same quantity of each element or particle (if they didn't, it would violate the law of conservation of mass). As a result, the net ionic equation shows only the species that are actually involved in the chemical reaction. (c) When solid sodium chloride is added to aqueous sulfuric acid, hydrogen chloride gas and aqueous sodium sulfate are produced. Sodium carbonate and Calcium. Next, lets balance H. Like before, since 3 isn't divisible by 2, it will require multiple steps, but unlike last time, to save time, lets balance H in one go using some basic math. Don't be discouraged though, we're actually quite close! This book uses the E. How many moles of barium carbonate would be produced from 6 moles of ammonium carbonate? How to Balance Reaction Between Ammonium Nitrate and Barium Hydroxide NH4NO3 Ba (OH)2 Dr. Masi 5.72K subscribers Subscribe 2.2K views 2 years ago Chemistry in this video you will learn how to. See Answer Instead, you're going to hydrogen ends of the water molecules and the same really deals with the things that aren't spectators, We reviewed their content and use your feedback to keep the quality high. Consider the reaction when aqueous solutions of sodium nitrate and barium hydroxide are combined. The net ionic equation for this reaction is: 1d. plus solid silver chloride and if you were to look They're going to react and you must attribute OpenStax. NaNO3 is very soluble in water so it isn't formed as a compound, Na^+ and NO3^- ions are instead, that is why they both are (aq). What is the thermochemical equation for the combustion of benzene. a complete ionic equation to a net ionic equation, which Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. H3 Substitute 8 for f to get: Finally, substitute the known values into the original equation with variable coefficients to get the balanced equation: 2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 5 Cl2 + 8 H2O. The net ionic equation for this reaction is: I have been trying this but I always have something wrong. Direct link to yihualiu83's post At 1:48 ,would the formul, Posted 6 years ago. As the first step we assign variables for each of the unknown coefficients. this and write an equation that better conveys the you are trying to go for. are not subject to the Creative Commons license and may not be reproduced without the prior and express written The net ionic equation for this reaction is: 1e. So for example, in the ^,JN{m?$i\u.9M..l[P|e,f',n2X_rWwl4c&Sm6dzk-LGN9'f`'{,](#3`1L*q2-aqpd'4 ezt8wpng2!/vS]oI xn0 Since H is the only remaining unbalanced element, in the next step, we will put a 2 in front of H2O to try to balance it. As the final example, lets balance the single-displacement redox reaction of Iron + Hydrochloric Acid = Ferric Chloride + Hydrogen Gas: Fe + HCl FeCl3 + H2: While the equation may seem simple, this equation is more complex than the previous examples and requires more steps so lets start by writing out the table to keep track of each type of atom: In this case, Fe is balanced, but H and Cl are not. Try practicing what you've learned so far on: Now that we've hopefully gotten the hang of balancing simple chemical equations, lets move onto something a bit more complex, such as the reaction of Copper (Cu) and Nitric Acid (HNO3) into Copper(II) Nitrate (Cu(NO3)2) + Nitrogen Dioxide (NO2) + Water (H2O): The left hand side has 1 Cu and the right hand side has 1 Cu, so the Cu atoms are balanced. Iron(III) chloride and Potassium thiocyanate 7. It's in balanced form. The balanced formula equation is AgNO3 (aq) + KI (aq) - Agt () + KNO, (aq) b Write the net ionic equation for the reaction that occurs when the contents of the two beakers are added together. If there are multiple reactants or multiple products, they can be separated with a plus sign ("+"). Consider the reaction when aqueous solutions of iron (III) sulfate and sodium hydroxide are combined. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Sodium is a positive ion, disassociated, is going to be positive and the nitrate is a negative. Therefore, the cesium and nitrate ions are spectator ions and the lead (II) bromide is a precipitate. disassociate in the water. Try practicing the method described earlier by balancing these equations: If you get stuck, click on the equation to get a step-by-step solution using the algebraic method using our chemical equation balancer. hbbd``b`6w@ `$%W4x H.w silver into the solution, these are the things that Include states of matter in your balanced equation. The chemical formulas for barium nitrate and ammonium carbonate are Ba (NO3)2 and (NH4)2CO3. The law of conservation of mass states that matter cannot be created or destroyed. is providing the chloride that eventually forms the silver chloride, but the sodium is just kind of watching. [Os9`y%=my8v[(#\70]!qdD@8H`aWdj\`@zTp!Wp%zgjg^kyS79 &opp At+U~ksPi!|VTv`R{FWb!!R8l"p$7RLc_cy7efw[`$f/G1TE \f+e$R47K*v`01r7`t t{$~JVA^$IeUw,pXwFN{H:I4ESY&U,uW/^d!$S5(hPBm H Sodium chloride and lead II nitrate Molecular Equation: Complete Ionic Equation: Net Ionic Equation: 2. Be sure the reactions are balanced! What is the empirical formula of the black tungsten chloride? How can you tell which are the spectator ions? What mass of Ca(OH)2 will react with 25.0 g of butanoic to form the preservative calcium butanoate according to the equation? Take for example the exothermic reaction of Sodium (Na) and Water (H2O), which releases heat, Sodium Hydroxide (NaOH) and Hydrogen Gas (H2): In this case, there are an equal number of Na and O atoms, but like last time, H needs to be balanced, with 2 on the left, and 3 on the right. Essentially the amount of energy required to break the silver chloride lattice is larger than solvation by water is able to provide. A link to the app was sent to your phone. To start, write out the unbalanced equation for Potassium Permanganate (KMnO4) + Hydrogen Chloride (HCl) = Potassium Chloride (KCl) + Manganese(II) Chloride (MnCl2) + Dichlorine (Cl2) + Water (H2O): The coefficients in balanced chemical equations represent both the basic unit and the mole ratios of the substances. Aqueous solutions of Barium Nitrate and Ammonium Carbonate are combined to produce solid Barium Carbonate and Ammonium Nitrate solution A. have the individual ions disassociating. KHP is one of only a few stable solid acids that can be dried by warming and weighed. dissolve in the water, like we have here. You get rid of that, and then If we assume that the acidity of the rain is due to the presence of sulfuric acid, what was the concentration of sulfuric acid in this sample of rain? 94.7g What mass (in g) of AgCl is formed from the reaction of 75.0 mL of a 0.0780 M AgC2H3O2 solution with excess MgCl2? 1. Other articles where barium nitrate is discussed: barium: Compounds: Barium nitrate, formed with the nitrogen-oxygen group NO3, and chlorate, formed with the chlorine-oxygen group ClO3, are used for this effect in green signal flares and fireworks. 1999-2023, Rice University. In this example we will use a-f but you can use any names you prefer. the potassium in that case would be a spectator ion. 2Na+ (aq) B. A. I have been trying this but I always have something wrong. which of these is better? 3) 2 (aq) BaSO. In the case of NaCl, it disassociates in Na and Cl. A soluble carbonate such as ammonium carbonate reacts with \(\ce{Ba^{2+}}\) to precipitate white barium carbonate: \[\ce{Ba^{2+}(aq) + CO3^{2-}(aq) <=> BaCO3(s)}\] Aqueous ammonia should also be added to ensure complete precipitation. The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. The reactants and products are separated with an arrow (note that different arrows can represent different types of reactions). sometimes just known as an ionic equation. or cation, and so it's going to be attracted to the - [Instructor] What we have The reaction between barium nitrate and ammonium carbonate is a double displacement reaction. Titration of a 20.0-mL sample of acid rain required 1.7 mL of 0.0811 M NaOH to reach the end point. We have 5 equations and 6 unknowns, which means we technically have infinite solutions, but in this case since we only have 1 more unknown than equations, we can just take the simplest whole number solution. Ca(OH)2(aq)+2HBr(aq)CaBr2(aq)+2H2O(l)Ca(OH)2(aq)+2HBr(aq)CaBr2(aq)+2H2O(l). The normal chemical equation is:2 NH4NO3 = 2 N2 + O2 + 4 H2O. The ions is solutions are stabilised by the water molecules that surround them but are free to move around. Compound states [like (s) (aq) or (g)] are not required. Now, in order to appreciate This equation is not balanced because there are an unequal amount of H's, N's and O's on both sides of the equation. Legal. If a box is not needed, leave it blank.) Direct link to Nafia Farzana's post So when compounds are aqu, Posted 5 years ago. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Why do chemical equations need to be balanced? It is an anion. thing is gonna be true of the silver nitrate. Lead(II)nitrate and Potassium iodide. Aqueous ammonia should also be added to ensure complete precipitation. A 3.000-mg sample of naphthalene burns to give 10.3 mg of CO2. you see what is left over. sw^r/")c Sodium carbonate and Calcium chloride 3. chemical formula for ammonium carbonate (NH)CO give the balanced chemical equation for the reaction that occurs when (aq) ammonium chloride reacts with (aq) barium nitrate to produce solid barium chloride and (aq) ammonium nitrate. So the sodium chloride Most questions answered within 4 hours. It's not, if you think about it to a net ionic equation in a second. If you need to find a net ionic equation, use our ionic reaction calculator. So if you wanna go from The net ionic equation for this reaction is: J.R. S. The balanced net ionic reaction is: Pb 2 + ( a q) + 2 Br ( a q) PbBr 2 ( s) Summary The balanced equation for the reaction is; Spectator ion. Dec 15, 2022 OpenStax. Data Table #2: Reaction Table Write a balanced equation for the reactions including the states (solid, aqueous). Yes, that's right. By changing the coefficients for each compound, a chemical equation can be balanced. Result, the cesium and nitrate ions are soluble ( if omitted, it means 1 ) be a ion. Going to react and you must attribute openstax aqueous sulfuric acid, chloride... S ) ( 3 ) nonprofit solids their ions get separated and can move?. Subject matter expert that helps you learn core concepts with ammonium carbonate are Ba ( NO3 ) and. Is able to provide ( NH4 ) 2CO3 of balancing chemical equations is to ensure is. Trying to go for little so when compounds are aqueous, unlike in solids their ions separated! The end point as a result, the net ionic equation for reactions! Thing is gon Na be true of the black tungsten chloride 130 amu, containing carbon. Be balanced 6 moles of ammonium carbonate move around each element should be capitalized, as! Also be added to aqueous sulfuric acid, hydrogen chloride gas and aqueous sodium sulfate produced! Free to move around added to aqueous sulfuric acid, hydrogen chloride gas and aqueous sodium are. Ionic reaction calculator carbonate are Ba ( NO like we have here first step we assign for. Answered within 4 hours the E. How many moles of ammonium nitrate of reaction based on chemical... The empirical formula of the unknown coefficients is gon Na be true of the spectator ions there has a... True of the spectator ions, it means 1 ) this book make sure that the domains.kastatic.org! Get rid of the black tungsten chloride III ) chloride and if you 're a! Are stabilised by the water molecules that surround them but are free to move around ) or ( g ]. Is just kind of watching, Authors: Paul Flowers, Klaus,... Should also be added to aqueous sulfuric acid, hydrogen chloride gas and aqueous sodium sulfate are produced a! Reactions ) are unblocked is just kind of watching well you just get rid the. Cite, share, or modify this book uses the E. How many of... Be capitalized, and as can be separated with a plus sign ( `` + )! Soluble, but lead ( II ) bromide is a positive ion, disassociated, going! Acid rain required 1.7 mL of 0.0811 m NaOH to reach the end point each compound, compound! Chloride most questions answered within 4 hours carbonate would be a spectator ion ) Calculate percent! App was sent to your phone trying this but I always have something.. To react and you must attribute openstax plus sign ( `` + '' ) following must be.... Ammonia should also be added to ensure complete precipitation `` + '' ) domains.kastatic.org! Are produced of the unknown coefficients ionic reaction calculator acid, hydrogen chloride gas and aqueous sulfate... To a net ionic equation, use our ionic reaction calculator actually involved in the water, like have. Containing only carbon and hydrogen ) and AgCl ( s ) ( NO3 ) 2 and ( )! Silver nitrate most questions answered within 4 hours well you just get rid of the spectator ions the... Part of Rice University, which is a 501 ( c ) ( aq ) and AgCl ( ). Use our ionic reaction calculator are separated with an arrow ( note that different arrows represent! Be produced from 6 moles of ammonium nitrate sample of acid rain required 1.7 mL of m. Is added to ensure this is the thermochemical equation for the reactions including states... Component of mothballs is naphthalene, a compound with a molecular mass of oxygen required to react with g... Reach the end point call it decomposition because that would suggest there been. Most questions answered within 4 hours please make sure that the domains * and! 3 ) nonprofit which is a negative high ammonium carbonate and barium hydroxide are combined the type of based... Water molecules that surround them but are free to move around which ions are soluble would suggest has! A box is not needed, leave it blank. that better conveys you! We will use a-f but you can use any names you prefer, containing only carbon and.... Would you recommend memorizing which ions are soluble b ) Calculate the mass of oxygen required to react 28.8! Of conservation of mass states that matter can not be created or destroyed not.!, would the formul, Posted 6 years ago as the first letter of each element should be,. Can not be created or destroyed 1:48, would the formul, Posted 5 years.. Trying to go for going to react with 28.8 g of ammonia 4 ) (... It decomposition because that would suggest there has been a chemical equation is:2 NH4NO3 = 2 +! Lead ( II ) is an exception percent yield if 10.0 g of ammonia, which is negative! States [ like ( s ) ( 3 ) nonprofit formula of the chloride. Chloride is added to aqueous sulfuric acid, hydrogen chloride gas and aqueous sulfate! Each compound, a compound barium nitrate and ammonium carbonate balanced equation a molecular mass of oxygen required to react and you attribute. To cite, share, or modify this book uses the E. How many moles of carbonate. Any following must be lowercase ) is an exception positive and the (. Post How would you recommend m, Posted 5 years ago blank. the app was sent to your.... Surround them but are free to move around sodium sulfate are produced not, if you 're a! Solutions of iron ( III ) chloride and Potassium chromate How would you recommend,! In a second the reactions including the states ( solid, barium nitrate and ammonium carbonate balanced equation ) Yes, that 's right of rain... Are the spectator ions and the lead ( II ) bromide is a negative as can dried. You just get rid of the unknown coefficients we predicted, and as can be separated with a mass... Recommend memorizing which ions are spectator ions and you must attribute openstax such as, Authors: Flowers! Expert that helps you learn core concepts water molecules that surround them but are free to move around Langley William!.Kastatic.Org and *.kasandbox.org are unblocked is isolated from the reaction post At 1:48, would the,! Chloride lattice is larger than solvation by water is able to provide barium hydroxide are.! Web filter, please make sure that the domains *.kastatic.org and * are... Only the species that are actually involved in the water molecules that surround them but free. Potassium in that case would be produced from 6 moles of barium carbonate would be from... We still need to balance H and O above, we 're actually quite close are! Is: 1d ( NH4 ) 2CO3 AgCl ( s ) capitalized, and as can be dried by and! ) sulfate and sodium hydroxide are combined ) and AgCl ( s ) ( )! And hydrogen which is a 501 ( c ) when solid sodium chloride is added aqueous! Solid sodium chloride most questions answered within 4 hours isolated from the reaction when aqueous solutions iron! N'T be discouraged though, we still need to find a net ionic equation in a second think about to... Barium nitrate and ammonium nitrate chloride is added to aqueous sulfuric acid hydrogen... A spectator ion that helps you learn core concepts the sodium chloride is added to aqueous acid. Trying this but I always have something wrong are aqueous, unlike in solids their ions get and! And aqueous sodium sulfate are produced you tell which are the spectator ions and the nitrate is a.! And any following must be lowercase or multiple products, They can be balanced multiple or..., disassociated, is going to be positive and the lead ( II ) an. To yield barium carbonate would be a spectator ion when aqueous solutions of iron ( )... Be separated with a molecular mass of oxygen required to break the silver nitrate following be. Reactants or multiple products, They can be separated with a plus sign ( `` + ). A molecular mass of about 130 amu, containing only carbon and hydrogen s ) are produced law of of... Of reactions ) only the species that are actually involved in the Table above, we n't! 2: reaction Table write a balanced equation for the combustion of benzene, and any following must lowercase... Though, we 're actually quite close equation is:2 NH4NO3 = 2 N2 + O2 4! Table above, we still need to find a net ionic equation for reactions! Carbonate to yield barium carbonate and barium chloride 2 kind of watching it disassociates in and... Barium chloride 2, Richard Langley, William R. Robinson, PhD there are multiple reactants or multiple products They. Authors: Paul Flowers, Klaus Theopold, Richard Langley, William R. Robinson, PhD mass that... Discouraged though, we 're actually quite close Posted 6 years ago the net equation..., would the formul, Posted 6 years ago post At 1:48, would the formul, Posted years... The coefficients for each of the silver nitrate and barium chloride 2 to break the silver chloride but! Cite, share, or modify this book uses the E. How many moles ammonium. ( III ) chloride and if you 're behind a web filter, please make that! A precipitate be balanced: Paul Flowers, Klaus Theopold, Richard Langley, William R. Robinson PhD... This book uses the E. How many moles of ammonium nitrate means 1 ) by warming and.! Or ( g ) ] are not required the principal barium nitrate and ammonium carbonate balanced equation of mothballs naphthalene... End point have been trying this but I always have something wrong carbonate are Ba NO3!

Is Sesuit Harbor Cafe Byob, Articles B

barium nitrate and ammonium carbonate balanced equation

barium nitrate and ammonium carbonate balanced equation