The naturally occurring acid 2-hydroxypropane-1,2,3-tricarboxylic acid is also known as
A student carried out an experiment, using the apparatus shown, to find the heat of combustion of ethanol.
Consider the following graph which relates to the Haber process:
The diagram shows a galvanic cell used to measure electrode potentials.
Which of the following describes a correct procedure to test for barium ions in 2 mL of a dilute acid solution?
Which one of the following species could be analysed using AAS?
The graph shows the concentrations over time for the equilibrium system:
The diagram below shows a polymer.
Phenolphthalein can be used to determine the equivalence point in the titration of acetic acid with sodium hydroxide, but methyl orange is no use in this case. The most appropriate explanation for the above statement is:
Which one of the following substances can be classified as an Arrhenius acid?
Cellulose is an example of a condensation polymer, and it is the major component of biomass.
HDPE and LDPE are two of the most commercially important polymers in use today. Which one of the following options correctly describes aspects of their chemistry?
What is the correct systematic name for the compound having the structure shown below?
The table shows the recorded values for the enthalpy of combustion of natural gas, from different sources, under standard conditions.
Consider the table below: