Nettet23. nov. 2024 · Because ethanol boils at 78°C, a tube of it boils when placed in a beaker of hot water. In this experiment you need to place a leaf in boiling ethanol to decolourise … NettetThe changes in the oxygen concentration in the water could be measured using datalogging equipment. You could investigate the effect of different wavelengths of light …
Measuring the specific heat capacity of water experiment
Nettet25. mar. 2024 · In the above experiment, the limewater in the boiling tube changes colour indicating carbon dioxide is produced by combustion of the hydrocarbon fuel. If water is … NettetLimestone - GCSE Chemistry (Single Science) Revision - WJEC - BBC Bitesize. GCSE. 33制原则是什么
Reactions of carbon dioxide - Gas chemistry - (CCEA) - BBC Bitesize
NettetLime water is a saturated solution of calcium hydroxide (slaked lime, Ca(OH) 2).It is used to detect carbon dioxide (CO 2), which forms a milky white precipitate of calcium … Nettet10. apr. 2024 · Calcium hydroxide (also known as slaked lime) is used to neutralise excess acidity, for example, in lakes and soils affected by acid rain. Calcium hydroxide … Nettet16. feb. 2024 · The higher the rate of respiration, the more the coloured liquid moves. The experiment has a control with no insect in order to compare results. A wide variety of … 33制原则在什么时期