To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. In a double replacement, the two metals switch places with each other, so the correct answer would be C--PbCl2 + NaNO3. Think about it: you've got two elements combining to form one product. Mg +Cl2 = MgCl2(s) but you have to light the Mg ribbon before putting it in the gas jar full of Cl2 or the reaction is very slow. Mg ( s ) + Cl2 ( g ) = MgCl2 ( (s ) , thus 1 atom of Mg reacts with two atoms of Cl2 gas and makes a compound MgCl2 which is ionic in nature , due to donation of 2 electrons by Mg and becoming positively charged at the same time these 2 electrons are shared by each Cl2atoms and becoming -vely charged , but MgCl2 becomes a stable ionic compound in which Mg between the two Chlorine atom and becomes a stable ionic compound. I went to a Thanksgiving dinner with over 100 guests. If you put a coefficient of 7 in front of the Br2, then your equation is balanced. which makes you more jittery coffee or tea? You know this because you're starting with 2 elements, and they have to combine to form a compound. The reaction is also redox, but chlorine was not involved. Replace immutable groups in compounds to avoid ambiguity. Which of the following can be characterized as a strong electrolyte. The lead and the sodium switched places. Get your answers by asking now. There are 2 atoms of Na on both sides, 4 atoms of H on both sides, and 2 atoms of O on both sides. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. Mg likes to lose electrons to get the electron configuration of an inert gas and Cl picks electrons up to get the configuration of an inert gas. 3CBr4 + 2BrO3 >>> 3CO2 + Br2 If you count up the number of bromine atoms you have on the left, you get 14. The element oxidized is Mg, but H in HCl is reduced to H2. Just like burning in air, but the chlorine does the oxidising. CBr4 + 2BrO3 >>> 3CO2 + Br2 Now to balance the carbon. It works the same way for a chemical reaction. Magnesium + Hydrogen Chloride = Magnesium Chloride + Dihydrogen. Join Yahoo Answers and get 100 points today. 3. For the best answers, search on this site This is a double replacement reaction, because you're starting out with 2 compounds and a double replacement is the only thing that can really occur. Instructions To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. 1. 4. Tony Hsieh, iconic Las Vegas entrepreneur, dies at 46, Jolie becomes trending topic after dad's pro-Trump rant, 2 shot, killed at Northern Calif. mall on Black Friday, Harmless symptom was actually lung cancer, No thanks: Lions fire Matt Patricia, GM Bob Quinn, Eric Clapton sparks backlash over new anti-lockdown song, Highly conservative state becomes hot weed market, Black Friday starts off with whimper despite record day, Washington NFL team deletes tweet mocking Trump, How the post-election stocks rally stacks up against history. Mg(s) 2 24.305 Cl 2 (g) 1 70.906 MgCl 2 59.758 Units: molar mass - g/mol, weight - g. Please tell about this free chemistry software to your friends! Check the number of atoms of each element on each side of the equation to see if it balances. Aluminum is +3 and chlorine is -1, so your formula is AlCl3. A sample of the ore weighing 4.301 g was treated with nitric acid, which dissolved the PbCO3? Balance the reaction of Mg + HCl = MgCl2 + H2 using this chemical equation balancer! The chief was seen coughing and not wearing a mask. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored.