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Chem 1020 - Exam 1 Review Questions and answers latest update 2024
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Chem 1020 - Exam 1 Review Questions and answers latest update 2024
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Chem 1020 - Exam 1 ReviewThe scientific method emphasizes reason as the way to understand the world - correct answer False
A scientific law is a brief statement that summarizes past observations and predicts future ones - correct
answer True
Law of conservation of mass states... - correct answer Mass can neither be created or destroyed
Scientific theories are also called models - correct answer True
Pure substance - correct answer Substances made of only one type of atom or only one type of molecule
Mixture - correct answer A substance made of two or more different types of atoms or molecules
Element - correct answer A substance that cannot be broken down into simpler substances (represented
by chemical symbols)
Compound - correct answer A substance made of two or more elements in fixed proportions
(represented by chemical formulas)
Pure substances consist of... - correct answer Elements and compounds
Homogeneous mixture - correct answer Consistent properties for a given sample
Heterogeneous mixture - correct answer Does NOT have consistent properties throughout
Examples of a homo mixtures? - correct answer clean air, brass, bronze, steel
Examples of hetero mixtures? - correct answer rocks, soil, pizza
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