Mathematics, 08.12.2021 16:50 janyak048janyak048
The mass of a an atom of helium is 6.65 x 10−24. Use scientific notation to express the mass of 250 helium atoms. A) 1.6625 x 10−21 B) 1.6625 x 10−22 C) 1.6625 x 10−24 D) 1.6625 x 10−26
Answers: 3
Mathematics, 21.06.2019 18:20, julieariscar769
Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.
Answers: 2
The mass of a an atom of helium is 6.65 x 10−24. Use scientific notation to express the mass of 250...
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