Alpha Omega Chemistry 1101 Self Test 4

Express as an ordinary number: 3.85 X 10^-3

0.00385

Express in scientific notation: 0.01325

1.325 X 10^-2

Express the answer in scientific notation: (6X10^4) (3.1X10^-1)

1.86 X 10^4

centi

1/100

milli

1/1000

kilo

1000

The metric system was first used about

1790

Express the answer in scientific notation: (1.8 X 10^-2) / (9 X 10^2)

2 X 10^-5

How many significant figures does 0.1150g contain?

4

How many significant figures does 6,001300cm contain?

5

Express in scientific notation: 61, 103

6.1103 X 10^4

Express as an ordinary number: 6.983 X 10^4

69,830

The number 7.325 rounded off to three significant figures

7.32

The number 89,667 rounded off to three significant figures

89.7 = 8.97 X 10^1

an appropriate instrument to measure mass

balance

cm, L, ml, cm^3 Which is not a unit of volume?

cm (centimeter)

accuracy

correctness of a measurement

hypothesis

educated guess

meter stick

instrument to measure distance

graduated cylinder

instrument used to measure volume of a liquid

the primary unit of mass

kg (kilogram)

primary unit of length

m (meter)

quantitative

numerical observation

direct relationship

straight line data graph

+/- value

uncertainty value of measurement