View Full Version : Rewrite equations as balanced chemical equations
Siustrulka
Dec 30, 2006, 04:43 PM
Magnesium chloride yield sulfur dioxide
Calcium carbonate yields calcium oxide plus carbon dioxide
Nitrogen plus hygrogen yield ammonia
Hydrochloric acid plus sodium hydroxide yield sodium chloride plus water
Sodium plus water yield sodium hydroxide plus hydrogen gas
Lead(II) oxide yields lead plus oxygen
Copper plus silver nitrate yield silver plus copper (II) nitrate
Potassium chlorate yields potassium chloride plus oxygen
Calcium chloride plus silver nitrate yield silver chloride plus calcium nitrate
Sodium bromide plus chlorine yield sodium chloride plus bromine
Oxygen plus hydrogen yield water
rudi_in
Dec 30, 2006, 06:04 PM
Thank you for posting your question to the Ask Me Help Desk.
Let's start by having you write down for me what you think are all the chemical formulas that represent the words in each statement.
Siustrulka
Dec 30, 2006, 06:16 PM
I did them could you check if they are right thank you
SYNTHESIS
S + O2 āSO2
O2+ 2H2--> 2H2O
N2+H2-> 2NH3
DECOMPOSITION
CaCO3 -> CaO + CO2
2KClO3 → 2KCl + 3O2
2PbO->2Pb+O2
SINGLE DISPLACEMENT
2Na+2H2O->2NaOH+H2
2NaBr+Cl2->2NaCl+Br2
Cu+2AgNO3->2Ag+ Cu(NO3)2
DOUBLE DISPLACEMENT
HCl+NaOH->NaCl+ H2O
MgCl2+H2SO4-> MgSO4+2HCl
CaCl2+2AgNO3->2AgCl+Ca(NO3)2
rudi_in
Dec 30, 2006, 06:32 PM
Excellent!
You just answered your own question. :D
You even went a step further and identified the type of reaction.
I knew you could do it!
Great Job!
Siustrulka
Dec 30, 2006, 06:36 PM
Thank you:)
Siustrulka
Dec 30, 2006, 06:37 PM
I have one more question
Is oxygen the only gas in the air which will combine with Mg
arsenaltom
Jan 15, 2007, 11:04 AM
magnesium chloride yield sulfur dioxide
calcium carbonate yields calcium oxide plus carbon dioxide
nitrogen plus hygrogen yield ammonia
hydrochloric acid plus sodium hydroxide yield sodium chloride plus water
sodium plus water yield sodium hydroxide plus hydrogen gas
lead(II) oxide yields lead plus oxygen
copper plus silver nitrate yield silver plus copper (II) nitrate
potassium chlorate yields potassium chloride plus oxygen
calcium chloride plus silver nitrate yield silver chloride plus calcium nitrate
sodium bromide plus chlorine yield sodium chloride plus bromine
oxygen plus hydrogen yield water
How many atoms does kerosene have
Capuchin
Jan 15, 2007, 11:19 AM
Kerosene is a mixture of many different hydrocarbons, so I can't tell you how many atoms are in a molecule of kerosene.
sprinter4u
Mar 28, 2011, 02:05 PM
Oxygen plus hydrogen yield water :
O+H-->H20 (the 2 is supposed to be a subscript by the way)