Flashcard: Fundamentals of Chemistry and Measurement — 10 carte

Density — formula?

Mass divided by volume

Scientific notation — purpose?

Expresses large or small numbers compactly

Scientific notation — format?

A × 10^n, with 1 ≤ A < 10

Density formula?

Density = Mass / Volume

Percent error — calculation?

(Measured - Accepted)/Accepted × 100

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