Consider the reaction below: NH₃(aq) + H₂O(l) → NH₄⁺(aq) + OH⁻(aq) Which species are a conjugate acid–base pair?

Calculate the [H⁺] when [OH⁻] = 4.0 × 10⁻⁵ M. Classify the solution.

At constant pressure, increasing temperature causes gas volume to increase.

In a neutralization reaction, the products are always a salt and water.

In the reaction below, which species acts as the base? HCl(aq) + H₂O(l) → H₃O⁺(aq) + Cl⁻(aq)

In a Brønsted–Lowry acid–base reaction, acids donate protons and bases accept protons.

A reaction with a negative ΔH is exothermic.

Based on its Lewis structure and molecular geometry, BF₃ is best described as:

Which molecule is most likely to be a liquid at room temperature, and why?

At constant temperature, increasing pressure causes gas volume to decrease.