1) Write out the equation and balance (add state symbols! HOH can be simplified to H2O as thats what you meant, I'm sure. Author has 5.2K answers and 983.5K answer views. 3) The 2NO3(aq) is common so cancel it out to get: MgO(s) + 2H+(aq) ------> Mg2+ (aq) + H2O(l), Please note that you cannot split (s), (l) or (g), If something is 2HCl, you must split it into 2H+ and 2Cl-, Full equation: MgCO3(s) + 2HCl(aq) --> MgCl2(aq) + CO2(g) + H2O(l), Split up into ions: MgCO3(s) + 2H+(aq) + 2Cl-(aq) --> Mg2+(aq) + 2Cl-(aq) + CO2(g) + H2O(l), MgCO3(s) + 2H+(aq) --> Mg2+(aq) + CO2(g) + H2O(l). In many cases a complete equation will be suggested. H2CO3 --> CO2 + H2O. It is an equation that shows you the ions that take part in the equation. The chief was seen coughing and not wearing a mask. Put them both together and we have your reaction. If you do not know what products are enter reagents only and click 'Balance'. … A molecule with molecular formula CxHyO yields a parent mass peak of 72 (M+=72). Get answers by asking now. A certain lead ore contains the compound PbCO3. The decomposition looks like this. MgCO3 + 2 HCl --> MgCl2 + CO2 + H2O The catch is that H2CO3 (carbonic acid) molecules don't exist in aqueous solution, so it is questionable whether … Chem help, chemical bonds and wavelength? Reaction stoichiometry could be computed for a balanced equation. Examples: Fe, Au, Co, Br, C, O, N, F.     Compare: Co - cobalt and CO - carbon monoxide, To enter an electron into a chemical equation use {-} or e. To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}. A sample of the ore weighing 4.301 g was treated with nitric acid, which dissolved the PbCO3? ), 3) Look at both sides now - cancel out anything that remains the same, MgO(s) + HNO3(aq) ------> Mg(NO3)2(aq) + H2O(l), 1) MgO(s) + 2 HNO3(aq) ------> Mg(NO3)2(aq) + H2O(l), 2) MgO(s) + 2H+(aq) + 2NO3(aq) ------> Mg2+ (aq) + 2NO3(aq) + H2O(l). First equation: MgCO3+HCL--> MgCl2 +HOH+CO2. Should I call the police on then? Substitute immutable groups in chemical compounds to avoid ambiguity. If you do not know what products are enter reagents only and click 'Balance'. Still have questions? Now write the full ionic equation - show anything that can dissociate , as separate ions . which makes you more jittery coffee or tea? Full equation: MgCO3(s) + 2HCl(aq) --> MgCl2(aq) + CO2(g) + H2O(l) Split up into ions: MgCO3(s) + 2H+(aq) + 2Cl-(aq) --> Mg2+(aq) + 2Cl-(aq) + CO2(g) + H2O(l) Cancel common ions on … You have the molecular equation with states: H2SO4 (aq) + MgCO3 (s)→ MgSO4 (aq) + H2O (l) + CO2. I went to a Thanksgiving dinner with over 100 guests. There are three main steps for writing the net ionic equation for H2SO4 + MgCO3 = MgSO4 + H2O + CO2 (Sulfuric acid + Magnesium carbonate). MgCO3 (s) + 2HCl (aq) → MgCl2 (aq) + CO2 (g) + H2O (l) You want the ionic equation: MgCO3 (s) + 2H+ (aq) + 2Cl- (aq) → Mg2+ (aq) + 2Cl- (aq) + CO2 (g) + H2O (l) The person above answered correctly. The answer will appear below, Always use the upper case for the first character in the element name and the lower case for the second character. MgCO3+HCL--> MgCl2 + H2O+ CO2. Join Yahoo Answers and get 100 points today. In many cases a complete equation … This is not true asnot all aqueous state compounds ionise in water (for instance sucrose). For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but PhC2H5 + O2 = PhOH + CO2 + H2O will; Compound states [like (s) (aq) or (g)] are not required. MgCO3 + 2HCl --> H2CO3 + MgCl2. But props to Dean for laying that out well! 2) If any of the compounds are aqueous, then you can split it up into 2 ions (the +ve and -ve). Limiting reagent can be computed for a balanced equation by entering the number of moles or weight for all reagents. MgCO3 + 2 HCl --> MgCl2 + CO2 + H2O… Enter either the number of moles or weight for one of the compounds to compute the rest. By using this website, you signify your acceptance of, calcium hydroxide + carbon dioxide = calcium carbonate + water, Enter an equation of a chemical reaction and click 'Balance'. Compound states [like (s) (aq) or (g)] are not required.