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Better Introductory Chemistry I assignments

Join a growing community of educators who are transforming the way they teach Introductory Chemistry I. Save time and improve learning outcomes by incorporating our full set of adaptive review assignments formatted to optimize long-term learning outcomes.
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46.7
Explain why using the correct units of measure is crucial in scientific calculations.
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Instructor answered
Using the correct units ensures accuracy, consistency, and clarity, preventing errors and allowing results to be universally understood and replicated in scientific calculations.
You answered
Ensures accuracy and prevents errors.

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Class Outline

  • 12
    units
  • 12
    adaptive reviews
Unit 1: Methods and Measurements
  • Unit 1: Methods and Measurements
  • Unit 2: Composition and Structure of the Atom
  • Unit 3: Elements, Atoms, Ions, and the Periodic Table
  • Unit 4: Structure and Properties of Ionic and Covalent Compounds
  • Unit 5: Calculations and the Chemical Equation
  • Unit 6: States of Matter
  • Unit 7: Reactions and Solutions
  • Unit 8: Chemical and Physical Change: Energy, Rate, and Equilibrium
  • Unit 9: Charge-Transfer Reactions: Acids and Bases and Oxidation-Reduction
  • Unit 10: Nucleus, Radioactivity, and Nuclear Medicine
  • Unit 11: Introduction to Organic Chemistry: Alkanes
  • Unit 12: Unsaturated Hydrocarbons: Alkenes, Alkynes
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46.7
Describe a scenario in which a physical change occurs and explain why it is classified as a physical change.
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