Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
25th April 2014
- 1Chemistry: Acids, Reactions and the Periodic Table
Name the acid that produces nitrate salts.
- 2Chemistry: The Periodic Table and Separating Mixtures
State whether reactivity increases or decreases going down Group 1, the alkali metals.
- 3Chemistry: Reactions, Energy and Rates
Explain, using collision theory, why crushing a solid into a powder increases the rate of reaction.
- 4Chemistry: Metals, the Reactivity Series and Environmental Chemistry
Name the gas released when fossil fuels are burned that is the main cause of the enhanced greenhouse effect.
- 5Physics: Forces and Energy
A farmer weighing 900 N stands on the ground. Her boots have a total sole area of 0.03 m^2. Use pressure = force / area to calculate the pressure she exerts on the ground, giving your answer in Pa.
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