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A mover packs books, CDs, and DVDs into a moving box. If the box contains 6.5 kg of books, 1.5 kg of CDs, and 2.0 kg of DVDs, what is the percent by mass of each object in the box?
asked
Feb 9, 2017
Chemistry
high-school
2
answers
0
votes
67.2k
views
Which of the following is responsible for the decline in the population of marine iguanas? Invasive species are preying upon them and their eggs. Increased salinity due to global warming is causing their
asked
Mar 25, 2016
Biology
high-school
1
answer
3
votes
234k
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