Answer is: because pH value of solution is changing.
Balanced chemical reaction: NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l).
pH of sodium hydroxide solution is above seven (basic), when solution of hydrochloric acid is added, pH slowly dropping until it became neutral solution (pH is equal seven) and that is endpoint of titration.
Lithium metal reacts with nitrogen gas to form lithium nitride the balanced chemical equation will be 6Li + N₂ → 2Li₃N.
<h3>What is a balanced chemical reaction?</h3>
In a balanced chemical reaction, the number of moles that are present at the side of the reactant must be always equal to the side of product formation this is known as a balanced chemical equation.
The balanced chemical reaction will be 6Li + N₂ → 2Li₃N.
Here 6 moles of lithium is reacting with one nitrogen but as it is in gaseous state it is N₂ after reacting with lithium it will give two moles
Therefore, balanced equation will be 6Li + N₂ → 2Li₃N
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Answer:
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Explanation:
If the compounds are dissociated, the ions are:
NH₄BY NH₄⁺ BY⁻
K₂HPO₄ K⁺ HPO₄²⁻
CuNO₃ Cu⁺ NO₃⁻
The given compounds assuming that they dissociate in solutions will produce the ions listed above.
The cations which are the positively charged ions in the above compounds are made up of metals and radicals.
The anions which are negatively charged ions are purely chemical radicals.
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When electrons are gained the element is negatively charged and when electrons are loss the element is positively charged