Which of the following is a substance?
Correct answer: D. graphite
- A. sea water
- B. brass
- C. tape water
- D. graphite
Explanation
A substance is defined as matter that has a specific composition and distinct properties.Graphite - Graphite is a form of carbon. It consists of carbon atoms arranged in layers. Since it has a specific composition and distinct properties, graphite is considered a substance.
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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