Chemistry, 04.03.2021 21:00 xxQueenPxx7432
A sample of barium is known to consist of 1.4x1023 atoms. How many moles are in this sample?
Group of answer choices
.21
.20
.23
.25
Answers: 1
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Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?
Answers: 1
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Answers: 3
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Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
A sample of barium is known to consist of 1.4x1023 atoms. How many moles are in this sample?
Group...
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