Explanation

Uni negative ion is exothermic due to strong nuclear attraction and no already electron-electron repulsion.

Explanation

Explanation

The reaction NaOH + HCl → NaCl + H₂O is a neutralization reaction between a strong base and a strong acid.

The enthalpy change in such reactions is called the heat of neutralization.

Explanation

Electronegativity:- Due to the increase in the number of protons electronegativity increases left to right in a period.

Explanation

The pKb of n-propyl amine is approximately 3.32, indicating its basicity.

Explanation

Na₂CO₃ is the salt that will produce the highest pH when dissolved in water because it is derived from a strong base (NaOH) and a weak acid (H₂CO₃).

Explanation

• The reactants in the reaction are Methane (CH4) and Oxygen (O2).
• These two substances combine to form the products Carbon Dioxide (CO2) and Water (H2O), releasing energy in the process.

Explanation

The combination that will produce a precipitate is NaOH (aq) and Fe(NO3)3 (aq).

Explanation

• In a process at constant volume, the change in internal energy (ΔE) is equal to the heat added to the system (q).
• Therefore, at constant volume, ΔE = q.

Explanation

When alcohol reacts with sodium, it produces alkoxide ions and hydrogen gas.