Daily Practice · GCSE Science

Daily Practice - GCSE Science

31st December 1996

5 questions · GCSE · 584 questions in this band

1
Chromatography and Instrumental Analysis
In a chromatography experiment, a dye spot travels 4.5 cm and the solvent front travels 6.0 cm. Calculate its Rf value.
2
Chemistry of the Atmosphere
Give two processes that removed carbon dioxide from the early atmosphere.
3
The Atmosphere: Evolution and Greenhouse Gases
Name the two gases produced by photosynthesis and the substance it consumes alongside carbon dioxide.
4
Climate Change and Atmospheric Pollutants
Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
5
Physics Equations: Recall, Rearrangement and Application
Write the equation linking power, energy and time, and rearrange it for time.

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