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WorksheetsUnit 6 Chemistry
Total questions: 21
Worksheet time: 31mins
Is the name of single bonded, saturated hydrocarbons.
Alkanes
Alkenes
Alkynes
Tanins
Is the name of doubled bonded, unsaturated hydrocarbons.
Alkanes
Alkenes
Allkynes
Tanins
Is the name of triple bonded, unsaturated hydrocarbons.
Alkanes
Alkenes
Alkynes
Tanins
is the alkene with 3 carbons in its chain.
Ethene
Propene
Methene
Decene
Is the simplest alkane
Ethane
Methane
Propane
Decane
Organize these hydrocarbons into these categories
Hydrocarbons are compounds that contain
only carbon
only carbon and hydrogen
only carbon, oxygen, and hydrogen,
only carbon, oxygen, hydrogen, and nitrogen
You have 100 grams of radioactive C-14. The half life of C-14 is 5730 years.
How many grams are left after 1 half life?
100 grams
25 grams
2 grams
50 grams
After the third half-life, how much of the sample is left?
1/2
1/3
1/16
1/8
The time it takes for a radioactivity level to drop by a half is is the sample's ___________________.
quarter life
whole life
wonderful life
half life
What is the Half life of this isotope?
5 seconds
10 seconds
15 seconds
20 seconds
The % of the parent isotope remaining after 1 Half Life.
50%
25%
12.5%
6.25%
The % of the parent isotope remaining after 2 Half Lives.
50%
25%
12.5%
6.25%
What is the only difference between two different isotopes of the same element?
Number of neutrons
Number of protons
Number of electrons
Size of atom
What is a benefit of nuclear reactions and radioisotopes? (Choose two)
Biological exposure to radiation
Determining the age of organic remains
Large amounts of energy are produced
uncontrolled chain reactions
Match each radioisotope with its beneficial use
I-131 and Co-60
Medical treatments
C-14
Finding the age of plants and fossils
U-238
the age of geological formations
