The coefficient (in this case a 2) indicates the number of moles or molecules of the compound. So, 2NH3 means there are 2 moles or 2 molecules of ammonia (NH3).
SrSO4 + 2H2O + 2NH3
False (APEX)
I think you mean mole ratio. It is usually represented as the coefficient or big number in a balanced chemical equation. N2 + 3H2 --> 2NH3 so the mole ratio of nitrogen to hydrogen is 1 : 3 or 1/3 and what you compare should be product / product or reactant / reactant
The arithmetic mean is 2.
2.
The coefficient (in this case a 2) indicates the number of moles or molecules of the compound. So, 2NH3 means there are 2 moles or 2 molecules of ammonia (NH3).
There are 2 nitrogen atoms in 2NH3.
SrSO4 + 2H2O + 2NH3
8 2xN=2 Nitrogen atoms + 2xH3=6 Hydrogen atoms =8 total atoms
Cu + 2NH3 → [Cu(NH3)2]+
2NH3 + 2NA = 3H2 + NA3N2
2NH3 molecules contain a total of 6 hydrogen atoms. This is because each NH3 molecule has 3 hydrogen atoms, and there are 2 NH3 molecules in the given compound.
Coefficient-Determines the number of molecules
Molecular equation: H2SO4 + 2NH3 ---> (NH4)2SO4 Complete ionic equation: 2H++ SO42- + 2NH3 ---> 2NH4+ + SO42- Net ionic: 2H+ + 2NH3 ---> 2NH4+
3H2 + N2 --> 2NH3 Since Hydrogen (H) and Nitrogen (N) both appear in nature diatomically they only appear as H2 and N2. We must add 3 molecules of Hydrogen and 1 molecule of Nitrogen to get 2 molecules of ammonia. We cannot, in nature, have half of a diatomic Hydrogen or Nitrogen atom, for that reason the equation must yield 2 molecules of Ammonia.
The balanced equation for this reaction is: N2(g) + 3H2(g) → 2NH3(g).
N2 + 3H2 -------> 2NH3