Density — formula?
Mass divided by volume
Scientific notation — format?
A × 10^n, with 1 ≤ A < 10
Percent error — calculation?
(Measured - Accepted)/Accepted × 100
Scientific notation — purpose?
Expresses large or small numbers compactly
Density formula?
Density = Mass / Volume
Percent error — purpose?
Measures measurement accuracy
Elements vs compounds — difference?
Elements: one atom type; compounds: bonded atoms
Mixture types — examples?
Homogeneous: solutions; heterogeneous: sand in water
Chemical vs physical change?
Chemical changes produce new substances
Heat transfer involves?
Fusion, vaporization, specific heat capacity
Answer 9 questions on Fundamentals of Chemistry and Measurement.
1. What is the correct format for scientific notation?
2. How is density calculated?
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