INTRODUCTORY
CHEMISTRY
Complete Class Notes & Exam Review Guide
COURSE REFERENCE
Aligned with Introductory Chemistry (7th
Edition) by Nivaldo J. Tro
WHAT'S INSIDE
✓ Comprehensive Chapter Summaries
✓ High-Yield Exam & Quiz Practice
✓ Step-by-Step Problem Solving
✓ Key Formulas & Unit Conversions
✓ Chemical Reactions & Stoichiometry
✓ Memory Aids & Essential Mnemonics
⚡ High-Yield Exam Preparation
Designed specifically for fast retention and top exam performance. Includes foundational chemistry concepts,
equation breakdowns, and structured practice sets.
NO COPYRIGHT INFRINGEMENT INTENDED • FAIR USE EDUCATIONAL GUIDE
This study guide is an independent summary produced for educational and exam preparation purposes only. It is not affiliated with, endorsed
by, or sponsored by Pearson, Nivaldo J. Tro, or any associated textbook publishers. Original textbook image used under fair use for reference
purposes to identify course compatibility.
V E R I F I E D S T U D E N T R E S O U R C E • R E A DY F O R I N S TA N T D O W N LOA D
,Introductory Chemistry, 7e (Tro)
Chapter 1 The Chemical World
1.1 True/False Questions
1) Chemicals make up everything around you, including your own body.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.1
Learning Outcome: 1.1
Global Outcome: G1
2) Chemists study the properties of substances and the particles that compose those substances.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.1
Learning Outcome: 1.1
Global Outcome: G1
3) When a sealed can of soda pop is opened, the carbon dioxide gas fizzes out because the pressure is
released.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.1
Learning Outcome: 1.2
Global Outcome: G2
4) Different molecules can have different shapes.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.1
Global Outcome: G1
5) The properties of water do not depend on how the atoms are bonded together in the molecule.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.1
Learning Outcome: 1.2
Global Outcome: G1
6) Both carbon dioxide molecules and water molecules consist of three atoms bonded together in a
straight line.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.1
Learning Outcome: 1.2
Global Outcome: G1
7) Molecules are responsible for scattering light which causes the colors of the sunset.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.2
Learning Outcome: 1.2
Global Outcome: G1
,8) All things are made of atoms or molecules.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.3
Learning Outcome: 1.2
Global Outcome: G1
9) Atoms and molecules determine how matter behaves.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.3
Learning Outcome: 1.2
Global Outcome: G1
10) Chemistry is the science that seeks to understand what matter does by studying living organisms.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.3
Learning Outcome: 1.3
Global Outcome: G1
11) The scientific method emphasizes reason as the way to understand the world.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G5
12) A hypothesis can never be proven as wrong.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G1
13) A theory is always true and can never be proven as wrong.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G1
14) Theories can be tested and validated through experimentation.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G9
15) If experimental results contradict a hypothesis, the hypothesis must be either revised or discarded.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G1
16) The Greek philosophers used observation and experimentation to understand the world.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G1
, 17) A scientific law is a brief statement that summarizes past observations and predicts future ones.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G1
18) The law of conservation of mass states, "In a chemical reaction matter can be created and destroyed."
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G1
19) Antoine Lavoisier observed that burning objects in a closed container resulted in a loss of mass.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Global Outcome: G1
20) A scientific theory describes the underlying reasons for observations and laws.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G1
21) The scientific method ensures that poor theories are eliminated over time and good theories remain.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G1
22) A theory is the equivalent of an opinion.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G1
23) Antoine Lavoisier proposed the atomic theory.
Answer: FALSE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G1
24) John Dalton proposed the atomic theory.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3
Global Outcome: G1
25) The first step in acquiring scientific knowledge is often the observation or measurement of some
aspect of nature.
Answer: TRUE
Diff: 1 Var: 1 Page Ref: 1.4
Learning Outcome: 1.3