Exam questions solved with precision
T/F
The properties of the hydrogen atom form the basis for all life - ANSWER-False
The source of materials which eventually formed our vast coal and oil deposits came
from
_______ buried in _______ rocks all over the earth. - ANSWER-plant & animal matter
sedimentary
T/F
Petroleum is used to make synthetic plastics and numerous petrochemicals. -
ANSWER-True
How was urea originally produced in the lab according to the text?
Concentrated sulfuric acid was accidentally added to sucrose.
Friedrich Wohler was working with ammonium cyanate & found crystals of urea in his
breakers.
Cobalt chloride was added to water, which produced crystals. - ANSWER-Friedrich
Wohler was working with ammonium cyanate & found crystals of urea in his beakers
T/F
The two classifications of all chemicals are organic and salts. - ANSWER-False
T/F
Prior to 1928, organic compounds were believed to originate solely from living
organisms. - ANSWER-True
T/F