Exploring Chemistry Chapters 13-15 Flashcards
Silicon carbide was discovered while trying to make synthetic
diamond
The one discovered first was the the planet Uranus or the element uranium.
the planet Uranus
The powder in the expression “keep your powder dry” was
gun powder
Cellulose gives plant cells their
strong cell walls
Silicon is the ___ .
second most abundant) element in the earth’s crust
The one better able to lubricate across extreme temperatures is hydrocarbon motor oil or silicone oil.
silicone oil
Guncotton would be described as being ___.
unpredictable and capable of exploding without warning
Blasting caps are used
for safe detonation of explosives
France’s Emperor Napoleon III had table sets made of
aluminum
Abraham Lincoln’s great construction project was to connect California to the East Coast with
a railroad
The one that can resist sudden changes in temperature is glass or quartz?
quartz
Silicon is an electric
semiconductor
The element found in computer chips is
silicone
The Star of India is
a diamond
Nitrocellulose is a combination of a _______________ compound with cellulose.
nitrogen
The six-pound metallic top to the Washington Monument is made of
aluminum
Ascanio Sobrero’s reaction to nitroglycerin was to
keep it secret
The essential element in explosives is _______________.
nitrogen
The foil used to wrap foods is made of
aluminum
Stained glass was colored
to hide the fact that glass makers could not make clear glass
A gem’s value is due to its
beauty, cost, and rarity
Uranium ore is
pitchblende
The radioactive element used in smoke detectors is
americium
Diatoms have cell walls of
silica
