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Discipline: Chemistry

Question topic: Pure Substances and Mixtures

Source: Originais Teachy

Level of difficulty: Medium

(Originais Teachy 2023) - Question Medium of Chemistry

Suppose you are a scientist working in a laboratory and have received two unknown samples to analyze: sample A and sample B. After conducting experiments and observations, you discover that sample A is composed of molecules of a single type of atom, while sample B is composed of molecules of two different types of atoms, bonded together. a) Identify whether each sample is a simple or compound substance and justify your answer. b) Explain what allotropes are and give an example of a substance that exhibits allotropy. c) Mention a reliable source of information about chemical substances and discuss the importance of seeking information from reliable sources.


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