WAEC Chemistry Past Questions & Answers - Page 153

Which of the following dilute acids does not react with metals to liberate hydrogen?

Salts that contain water of crystallization are said to be

Consider the reaction represented by the following equation: H _2(g) + \(\frac{1}{2}\) O_(g) → H ₂O_(g) ∆H =-285.8 KJmo ^-1 ∆H represents the enthalpy of

In a chemical reaction, ∆H is positive when

In a mixture of gases which do not react chemically together, the pressure exerted by the individual gases is called