It has been a long time, but I think it has to read:
2Na + 2H2O --> 2NaOH + H2
to be balanced.
The net ionic equation for the given reaction is H+ (aq) + OH- (aq) → H2O (l)
The balanced equation is 2HCl + Na2S → H2S + 2NaCl. This is balanced as the number of atoms of each element is the same on both sides of the equation.
The chemical equation is:Na + OH- + H+ + Cl- = Na+ + Cl- + H2O(l)
The chemical formula of nitric acid is HNO3.
The balanced equation for the reaction between calcium hydroxide (Ca(OH)₂) and sulfuric acid (H₂SO₄) is: Ca(OH)₂ + H₂SO₄ → CaSO₄ + 2H₂O.
Hydrochloric acid and sodium hydroxide yield salt and water H+ + Cl- + Na+ + OH- --> Na+ + Cl- + H2OComment:In solutions you better leave unchanged ions ( Cl- and Na+) out of the balanced equation: called to be 'tribune ions' (people on the tribune don't take part in the 'match'):H+ + OH- --> H2O This looks simpler than: H+ + Cl - + Na + + OH- --> Na + + Cl - + H2O
Sodium (Na+) and Hydrogen (H+) do not mix because they are both positively charged.
The balanced equation for the reaction between sodium (Na) and hydrogen iodide (HI) is: [ 2 \text{Na} + 2 \text{HI} \rightarrow 2 \text{NaI} + \text{H}_2 ] In this reaction, sodium displaces hydrogen from hydrogen iodide, producing sodium iodide (NaI) and hydrogen gas (H₂).
The net ionic equation for the given reaction is H+ (aq) + OH- (aq) → H2O (l)
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The balanced equation is 2HCl + Na2S → H2S + 2NaCl. This is balanced as the number of atoms of each element is the same on both sides of the equation.
Na+ plus OH- plus H+ equals H2O plus Na+ plus Cl-
H2 + Cl2 --> 2HCl
In the reaction involving Na⁺, OH⁻, Cl⁻, and H₂O, the spectator ions are Na⁺ and Cl⁻. These ions do not participate in the chemical reaction; they remain unchanged in the solution. The key species that participate in the reaction are OH⁻ and H₂O, which can combine to form water or other products depending on the context.
In the reaction given, the spectator ions are the ions that do not participate in the actual chemical change. In this case, the Na⁺ ions remain unchanged on both sides of the equation, so they are the spectator ions. The OH⁻ and H⁺ ions combine to form water (H₂O), while the Cr species is also involved in the reaction, potentially forming a compound.
2H2 + O2 --> 2H2O
It is already balanced, you have the same number of H's and the same number of Cl's in each side of the equation.