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One twelfth the mass of a carbon-12 atom is used to define a(an) a. atomic mass. b. mass number. c. atomic number. d. atomic mass unit.
asked
Jun 16, 2017
Chemistry
high-school
2
answers
3
votes
20.6k
views
Use the following system, use the second equation to make a substitution for x in the first equation x+5y-10=0 x=2y-8
asked
Mar 6, 2017
Mathematics
high-school
1
answer
1
vote
165k
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