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CHEMISTRY REVIEW PACKAGE #1

Updated: Nov 8, 2023

CHEMISTRY REVIEW PACKAGE #1


1. Physical & chemical properties

2. Matter, compound, molecule

3. Homogeneous vs heterogeneous

4. Physical & chemical change


source: CHEM112 Queen's University

Physical properties: Matter's basic identity, no bonds are broken or formed

Chemical properties: Matter's ability to react, new bonds formed and/or broken



Practice Qs on Physical & Chemical Properties





Answer Key


source: CHEM112 Queen's University
  • All matter is made of atoms

  • Compounds are 2 or more elements combined

  • Molecules are the smallest units of compounds (Thus H2O can be called a compound or a molecule)


HOMOGENEOUS VS. HETEROGENEOUS MIXTURES

  • Homogeneous: one phase, uniform composition and properties

source: Expii

  • Heterogeneous: more than one phase, non-uniform composition and properties


#1 Practice Qs on Homogeneous vs. Heterogeneous





#2 Practice Qs on Homogeneous vs. Heterogeneous

#1 Answer Key

#2 Answer Key


source: CHEM112 Queen's University

Physical change: no change in molecular structure, no new substance formed

Chemical change: change in molecular structure, new substance formed


Practice Qs on Physical & Chemical Change





Answer Key











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