Exploring Chemistry Chapters 1-4

Question 1

The name hydrogen means

Answer 1

water generator

Question 2

Goodyear discovered vulcanized rubber when he

Answer 2

heated sulfur with raw rubber

Question 3

Which symbol belongs in the circled box?

Answer 3

H (Hydrogen)

Question 4

What was the primary goal of alchemist?

Answer 4

to make gold from cheap metals.

Question 5

Steel is quenched by

Answer 5

heating it in an oven for several days

Question 6

What is the symbol for Oxygen?

Answer 6

O

Question 7

The single most important compound of sulfur is _______________ acid.

Answer 7

sulfuric

Question 8

Hydrogen is an ____ element on earth.

Answer 8

abundant

Question 9

Ancient people made musical instruments of

Answer 9

copper alloy

Question 10

The seven ancient metals are gold, silver, copper, iron, tin, lead, and _______.

Answer 10

mercury

Question 11

Which symbol belongs in the circled box?

Answer 11

Cl (Chlorine)

Question 12

Which of these forms of iron is the purest?
cast iron, charcoal, steel, or wrought iron

Answer 12

wrought iron

Question 13

Cavendish released the gas hydrogen by exposing metals to

Answer 13

hydrochloric acid

Question 14

Is 14-karat gold pure gold?

Answer 14

no

Question 15

Gold, silver, and _______________ are known as the coinage metals.

Answer 15

copper

Question 16

Which symbol belongs in the circled box?

Answer 16

C (Carbon)

Question 17

Charcoal is

Answer 17

wood that has been heated without oxygen

Question 18

The element that charcoal, coal, graphite, and diamond have in common is ___.

Answer 18

carbon

Question 19

Cast iron, steel, and wrought iron differ only in the amount of ____ they contain.

Answer 19

carbon

Question 20

Bronze and brass are both alloys that contain

Answer 20

copper

Question 21

What is the symbol for Carbon

Answer 21

C

Question 22

Another name for mercury is

Answer 22

quicksilver

Question 23

What is the symbol for Cl

Answer 23

Chlorine

Question 24

Which symbol belongs in the circled box?

Answer 24

N (Nitrogen)

Question 25

If a mixture of hydrogen and oxygen are exposed to a flame

Answer 25

a violent explosion results

Question 26

What is the symbol for Nitrogen?

Answer 26

N

Question 27

The first metal mentioned in both the Old and New Testaments is

Answer 27

gold

Question 28

Ancient people hammered the soft, pure iron from _______________ into useful tools.

Answer 28

meteorites

Question 29

What is they symbol for Hydrogen?

Answer 29

H

Question 30

The Statue of Liberty has a skin of

Answer 30

copper

Question 31

The Royal Society was formed to

Answer 31

communicate new ideas rapidly

Question 32

The gas that Priestley released by heating a mercury compound was

Answer 32

oxygen

Question 33

State the chemical formula: __ water __ carbon dioxide __ hydrochloric acid

Answer 33

H2O, CO2, HCl

Question 34

The Middle Ages are also known as the _______________ Ages.

Answer 34

Dark

Question 35

How does carbon from charcoal help during the smelting process?

Answer 35

frees iron from oxygen’s grip by combining with the oxygen

Question 36

Which symbol belongs in the circled box?

Answer 36

O (Oxygen)