Chemistry Year 12 Random Retrieval

What is the product of the reaction of but-2-ene with steam in the presence of a phosphoric acid catalyst?

An element which consists of a giant structure of atoms held together by covalent bonding is:

In which of these pairs do both entities have the same electron configuration?

(i) Li and Na

(ii) Na⁺ and Mg²⁺

(iii) F^- and Cl^-

(iv) Cl^- and Ar

An example of an endothermic change is the:

The standard enthalpy of combustion of methane is -890 kJ mol^-1. Calculate the energy given out on burning 3.2 g methane.

E represents an atom of an element in the equation: E_(g) -> E⁺_(g) + e^– Which of these statements is/are true:

(i) the element must be a metal

(ii) the enthalpy change for this process is the first ionisation energy of the element

(iii) the element must be a gas at room temperature.

(iv) this process occurs in a mass spectrometer used to analyse the element

In which of these molecules do the intermolecular forces arise largely from attractions between permanent dipoles?

Which of these compounds consists of a giant structure of ions?

The amount in moles of iodide ions oxidised by one mole of chlorine molecules is:

Hydrogen is oxidised when it reacts with:

(i) oxygen to form water

(ii) nitrogen to form ammonia

(iii) chlorine to form hydrogen chloride

(iv) sodium to form sodium hydride