Exploring Chemistry Chapter 13-16

Question 1

Cellulose gives plant cells their

Answer 1

strong cell walls

Question 2

Silicon is an electric

Answer 2

semiconductor

Question 3

discovered the family of inert gases.

Answer 3

William Ramsay

Question 4

was a Frenchman who burned a diamond. He stated the law of conservation of matter.

Answer 4

Antoine Laurent Lavoisier

Question 5

Blasting caps are used

Answer 5

for safe detonation of explosives

Question 6

made the first periodic table of the elements.

Answer 6

Dmitri Ivanovich Mendeleev

Question 7

stated the atomic theory of matter.

Answer 7

John Dalton

Question 8

The essential element in explosives is _______________.

Answer 8

nitrogen

Question 9

suggested the use of chemical symbols for elements.

Answer 9

Jöns Jakob Berzelius

Question 10

Uranium ore is

Answer 10

pitchblende

Question 11

The radioactive element used in smoke detectors is

Answer 11

americium

Question 12

The one discovered first was the the planet Uranus or the element uranium.

Answer 12

the planet Uranus

Question 13

Silicon carbide was discovered while trying to make synthetic

Answer 13

diamond

Question 14

The one better able to lubricate across extreme temperatures is hydrocarbon motor oil or silicone oil.

Answer 14

silicone oil

Question 15

was an eccentric English chemist who discovered hydrogen.

Answer 15

Henry Cavendish

Question 16

The foil used to wrap foods is made of

Answer 16

aluminum

Question 17

used electricity to free sodium and other elements from their ores.

Answer 17

Humphry Davy

Question 18

Nitrocellulose is a combination of a _______________ compound with cellulose.

Answer 18

nitrogen

Question 19

Stained glass was colored

Answer 19

to hide the fact that glass makers could not make clear glass

Question 20

The element found in computer chips is

Answer 20

silicone

Question 21

The six-pound metallic top to the Washington Monument is made of

Answer 21

aluminum

Question 22

Abraham Lincoln’s great construction project was to connect California to the East Coast with

Answer 22

a railroad

Question 23

A gem’s value is due to its

Answer 23

beauty, cost, and rarity

Question 24

Silicon is the ___ .

Answer 24

second most abundant) element in the earth’s crust

Question 25

was a French chemist who became a medical researcher.

Answer 25

Louis Pasteur

Question 26

The Star of India is

Answer 26

a diamond

Question 27

Diatoms have cell walls of

Answer 27

silica

Question 28

was Davy’s assistant who discovered benzene.

Answer 28

Michael Faraday

Question 29

The one that can resist sudden changes in temperature is glass or quartz?

Answer 29

quartz

Question 30

France’s Emperor Napoleon III had table sets made of

Answer 30

aluminum

Question 31

Ascanio Sobrero’s reaction to nitroglycerin was to

Answer 31

keep it secret

Question 32

Guncotton would be described as being ___.

Answer 32

unpredictable and capable of exploding without warning

Question 33

The powder in the expression “keep your powder dry” was

Answer 33

gun powder

Question 34

helped found the Royal Society. He also defined an element.

Answer 34

Robert Boyle