How to make sulphurdioxide gas?
543308
Reacting a Sulphurous Compounds with a Carbonate generally does the trick.\n\nI hope you like eggy smells!\n\nTom Walvin\nChemist
326922
Another easy reaction:\n\nMg(s) + HNO3 ===========> Mg(NO3)2 + H2 (g)\n\nMagnesium reacts rapidly with nitric acid to make magnesium nitrate and hydrogen gas
549468
Add some baking soda first and then pour on some vinegar. You will observe some bubble forming and the bublbles will rise very quickly. If you want to make fire instead, add some glycerine to potassium permagnate. Be very careful if you want to do this.
367193
Draino is essential NaOH add that to aluminum and you will get NaOH + Al --> Al(OH)3 + Na2O + H2. So I guess hydrogen gas.
885932
just mix petrolium and flour together in a bottle - make it thick into a sauce\n\nthat is instant NAPALM !!!!!!!!!!!!!!!!!!!!!!!
738402
Attach a bare wire to each terminal and dip the ends of both in salty water. Bubbles will form near the wires as the electricity breaks the water and salt molecules into their constituent gaseous elements. \n\nBy the way, with salty water you will get hydrogen and chlorine, but not oxygen. The salt is needed to make the water conduct electricity, but it also prevents you from getting oxygen gas from the water. You can do this experiment without the salt, but you will need WAY more than 9 volts. In that case you would get oxygen.
455269
H2SO4 + Mg(OH)2 -> 2H2O + MgSO4
28516
Breath them in one at a time for 5 min each.  If you die it was CO2 if you're alive it's O2.\n\nor fill 2 jars with the different gasses. stick a lit candle in them. if the candle goes right out its CO2 if it stays lit its O2.
185385
Basically you need to oxidise ammonia and then  adsorb the gases into water.\n\nSee the site below.
878226
The method is very simple.  I can do the first and you can try the others.\n\n1.  First write the reaction and balance it.\n\n2HgO ---> 2Hg + O2.\n\n2. Convert grams to moles of whatever mass you have.  In this case you have O2 as 96 grams.  You convert to moles by dividing the mass by the molecular weight.  In this case, for O2 will be 32 g/mol\n\n96 grams / 32 g/mol = 3 mol.\n\n3. Now you look back to the equation.  In the equation for producing 1 mol O2 you need 2 moles of HgO.  If now have 3 moles O2, then you will need 2 x 3 moles of HgO, 6 moles.\n\n4. Now you need to convert the moles of HgO to grams.  To do this calculate the molecular weight of HgO.  It is 216.6 g/mol\n\n6 moles * 216.6 g/mol = 1299.6 g of HgO.
947695
H2S + 2NaOH --> Na2S + 2H2O\nMoles of H2S given = (1.19/34) = 0.035\nMoles of NaOH given = (4.91/40) = 0.12275\nFrom the chemical equation, 1 mole of H2S needs 2 moles of NaOH for complete reaction. Hence for 0.035 moles of H2S, you need only (0.035 x 2 = 0.07) moles of NaOH.\nThus the limiting reagent is H2S.\nFrom chemical equation, 1 mole of H2S produces 1 mole of Na2S. Thus moles of Na2S produced = moles of H2S used = 0.035\nMass of 0.035 mole of Na2S = mole x Mr of Na2S = 0.035 x 78 = 2.73g\n\nHope this helps :)
870720
Theoretically this would yield H2SO4, sulphuric acid (c).\n\nIn praxis, SO3 doesn't dissolve well in water and is prone to dissociate into SO2 and 1/2 O2, which then may form sulphurous acid H2SO3 which in turn will re-oxidize to H2SO4.
900048
There are several.  Most are non-metalic oxides.\n\nCarbon dioxide:\nCO2 + H2O --> H2CO3 (carbonic acid)\n\nSulfur trioxide\nSO3 + H2O  -->  H2SO4 (sulfuric acid)\n\nSulfur diodixe\nSO2 + H2O  -->  H2SO3 (sulfurous acid)\n\nNitrogen dioxide\n3NO2 + H2O --> 2HNO3 (nitric acid) + NO\n\nThere are many others.
551708
heat it up, the sulphur will burn off.\n\nor mix with water and filter out the sand, then evaporate the water to get the sulphur.
438725
Magnesium Sulfate\n\nMgSO4\n\nMg(OH)2 + H2SO4 -> MgSO4 + 2HOH\n\nHOH = H20\nJust in case...
275334
One of my favorites is making carbon dioxide. I have used this with my nephews and nieces.\n\nYou will need water glass 6 to 8 oz\nbaking soda\nvinegar\nmatches\n\nput a couple teaspoons of baking soda into the glass (you don't need an accurate measurement)\npour in vinegar until the glass is about 1/2 full\nuse the time it fizzes to explain about carbon dioxide (do a little research for this part)\nlight a match and insert the lighted end into the glass (it will go out) or\nlight a match and very carefully tip the glass, pouring the gas over the match, it will go out. Be careful not to spill out the liquid. You won't hurt anything if you do, it just spoils the effect.
530435
Get a glowing splint (piece of wood that is still burning out). \n\nPlace near the oxygen and it will glow brighter as it uses the oxygen to burn more.\n\nPlace near the hydrogen and you will hear a 'pop' sound. \n\nHope that helps! :)