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______________________ is a quantitative observation consisting of two parts, number and scalar
Measurement
Measurement is a quantitative observation consisting of two parts, ___________ and ______________
number
scalar
_________ and _______ is the unit and abbreviation for mass
kilogram
kg
__________ and _______ is the unit and abbreviation for length
meter
m
_________ and _________ is the unit and abbreviation for time
second
s
_________ and _________ is the unit and abbreviation for temperature
kelvin
K
__________ and __________ is the unit and abbreviation for electric current
ampere
A
__________ and __________ is the unit and abbreviation for amount of substance
mole
mol
A digit that must be estimated is called _____________
uncertain
A measurement always has some degree of ___________
uncertainty
Record the certain digits and the ________ uncertain digit
first
______________ is the agreement or nearness of a particular value with the accepted or true value
accuracy
_____________ is the degree of agreement among several measurements of the same quantity. It is the nearness of the values with each other
precision
For CONVEX meniscus, the volume is read ___________ the liquid curve
above
for CONCAVE meniscus, the volume is read at the ___________ of the liquid curve
bottom
What are the 5 rules for counting significant figures?
1.
2.
3.
4.
5.
Nonzero integers
Leading zeros
Captive zeros
Trailing zeros
Exact numbers
_________________ is the rule applied wherein these integers always count as significant figures
nonzero integers
__________________ is the rule applied wherein zeros that precede all the nonzero digits are not significant
leading zeros
__________________ is the rule applied wherein zeros between nonzero digits always count as significant figures
captive zeros
_________________ is the rule applied wherein zeros at the right end of the number are significant only if it contains a decimal point
trailing zeros
_______________ is the rule applied wherein these numbers do not influence the number of significant figures as the DO NOT involve measurements
exact numbers