Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
30th November 2022
- 1Biology: Respiration, Digestion and Gas Exchange
A food sample turns from blue to brick-red when Benedict's solution is added and the mixture is heated. State which nutrient this positive result shows is present.
- 2Chemistry: Materials
State the name of the change of state when a solid changes directly into a liquid.
- 3Chemistry: Acids, Reactions and the Periodic Table
State the colour universal indicator turns in a strong alkali.
- 4Chemistry: The Periodic Table and Separating Mixtures
State the name given to a horizontal row of the periodic table.
- 5Chemistry: Reactions, Energy and Rates
A reaction between magnesium ribbon and hydrochloric acid gives off heat, and the temperature of the acid rises from 20 degrees C to 35 degrees C. State whether this reaction is exothermic or endothermic, and explain how you know.
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