Chem chapters 1-2
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26 Terms
Chapter 1: Chemistry in Our Lives
Key terms
Chemistry
Chemicals
The study of matter, its properties, and the changes matter undergoes.
Key concepts
Chemistry can be divided into several branches:
Organic Chemistry
Biochemistry
Geochemistry
Physical chemistry
Chapter 2: Chemistry and Measurements
Key terms
Measured numbers
Significant figures
Exact numbers
Density
Key concepts
That data can be precise, precise and accurate, or neither
That uncertainty is inherent in all measurements
Key skills
Write numbers in scientific notation
Identify the number of significant figures present in a measurement
Record answers to multiplication, division, addition, & subtraction problems using the proper number of significant figures
Convert units within the metric system
Calculate the density of a substance
Use dimensional analysis to solve problems