CHEM 110 Exam Study Guidance – Spring 2020

Q1. T/F: T will be true for the statement, F will be false.

Background

Topic: Scientific Reasoning and Chemistry Fundamentals

This question tests your understanding of basic chemistry concepts, including the nature of chemical and physical changes, the use of the periodic table, and scientific measurement.

Key Terms:

• Physical Change: A change in which the form of matter is altered but one substance is not transformed into another.

• Chemical Change: A change that results in the formation of new chemical substances.

• Significant Figures: Digits in a measurement that are known with certainty plus one digit that is estimated.

• Periodic Table: A tabular arrangement of the chemical elements, organized by atomic number.

Step-by-Step Guidance

1. Read each statement carefully and identify whether it describes a physical or chemical change, or relates to scientific measurement or the periodic table.

2. Recall the definitions of physical and chemical changes. For example, chopping wood is a physical change, while burning wood is a chemical change.

3. For statements about measurements (such as significant figures), review how to determine the number of significant digits in a given value.

4. Use the periodic table to answer questions about elements, their symbols, and their properties.

Try solving on your own before revealing the answer!

Final Answer:

1. (a) F 2. (b) T 3. (c) T 4. (d) F 5. (e) T

Each statement was evaluated based on the definitions and concepts above. For example, chopping wood is a physical change, not a chemical change.