Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
20th September 2023
- 1Chemistry: Materials
A pupil finds the volume of an irregular stone using a measuring cylinder. The water level rises from 35 cm^3 to 52 cm^3 when the stone is added. The stone has a mass of 42.5 g. Calculate the density of the stone, giving your answer to 2 significant figures.
- 2Chemistry: Acids, Reactions and the Periodic Table
A student adds a piece of unknown grey solid to dilute acid and no bubbles are produced, even after several minutes. Suggest whether the solid is a metal or a non-metal, and explain your reasoning.
- 3Chemistry: The Periodic Table and Separating Mixtures
Name the group of the periodic table that contains elements which are almost completely unreactive because their outer electron shell is full.
- 4Chemistry: Reactions, Energy and Rates
State what happens to a catalyst during a chemical reaction.
- 5Chemistry: Metals, the Reactivity Series and Environmental Chemistry
In the reactivity series, state which is more reactive: zinc or copper.
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