Quiz 1 Flashcards

1

Russian Chemist who pioneered the work on Periodic table

Mendeleev
Sergey
Demchenko
Meyerovic

2

The word atom comes from Greek work "Atomos" which means

very small
cannot be cut
reactive
cannot be seen

3

Mass is a better measure of the amount of matter than weight is because

mass is independent of location.
mass is dependent on location
mass is measured using the metric system
mass is easier to measure.

4

prefix deci is

1
0.001
0.1
0.0001

5

Father of Modern Chemistry is

Boyle
Lavoisier
Dalton
Proust

6

What is the symbol for micrometer

mm
μm
Mm
cm

7

All of the following are molecules except

Cl2
PbS
H2S
Co

8

Approximately how many elements occur naturally on Earth

90
30
20
119

9

What is the chemical change

water evaporates
salt dissolves in water
rusting iron
ice melts

10

Scientific results must be verified by

further experiments
government agencies
consulting noted scientific authorities
constructing plausible theories.

11

how many Sig Figs in 0.0036

3
4
2
5

12

Is an Element

H2
H2O
C
CO

13

Law of multiple proportions is illustrated by

NH3,PH3
NH3,N2H4
all of the above
CH3, CF3

14

Which science is primarily concerned with the study of matter and the changes it undergoes?

Physics
Geology
Chemistry
Biology

15

Which of the following is the basic unit of temperature in the metric system?

Kelvin unit (K)
Celsius degree (°C)
Fahrenheit degree(°F)
all of the above

Quiz 1

Questions 15

Quiz 1

Questions 15