A resident discovered and reported on a number of dead fish floating in their local creek. A team of chemists, including an analytical chemist, an organic chemist, and a biochemist, was established to investigate the fish death. What does this example best illustrate?
The apparatus shown is used in a first-hand investigation to determine and compare the heat of combustion of three different liquid alkanols.
Which of the following reactions may be described as a neutralisation reaction?
The reaction that is likely to occur would be:
Which isotope is radioactive?
What is the catalyst used in the formation of ammonia?
A student obtained the data in the table below when conducting an investigation on the sulfate content of a particular fertiliser.
A solid sample was known to contain two calcium salts. In order to determine the anions present, some tests were done on the solid, producing the following results.
Where on the Periodic Table would you most likely find elements which form basic oxides?
Which of the following would be the best catalyst for the dehydration of ethanol?
What is the correct method of preparing a 250 mL volumetric flask prior to using it to make up a primary standard?
In 1884, Svante Arrhenius proposed a definition for acids. His definition was soon accepted as superior to that put forward by earlier chemists. Why was Arrhenius’s definition seen as a major breakthrough?
An industrial chemist discovers that the following reaction is occurring in one part of his process.
Which of the following sets of chemical species could have their concentration measured using atomic absorption spectroscopy?
What mass of ethanol is obtained when 5.68 g of carbon dioxide is produced during fermentation at 25°C and 100 kPa?