Chem 1 Exam 1 1.4-1.5
density formula
density=mas/volume
Precise
if yield very similar result when repeated in same same tenths place
accurate
if it yields very close to true value tenths
are Nonzero digits significant
yeah
are Captive zeros significant
yeah
are Trailing Zeroes significant
depends
are trailing Zeros Zeroes right of decimal significant?
yeah
are trailing Zeros in Scientific Notation significant?
yeah
are leading Zeros significant?
no
are Trailing Zeros when left of desimal place significant?
no
how to deal with sig figs when +or -?
round to number with least places after adding
how to deal with sig figs when ×or÷?
round to least number of digits after math