Chemistry, 17.02.2021 03:50 hannahmckain
Complete the following problems showing all work Report answers to correct sig figs and units. (Hint:
you may have to write the formulas first)
1. How many moles are in 212.5 grams of K20?
2. How many atoms are in 0.618 moles of cobalt?
3. How many atoms are in 35.1 grams of iron (II) sulfide?
4. Your friend was asked to determine the mass (in grams) of 4.28 moles of LiBr. Below is their work and answer. Explain why their set up and answer are incorrect.
Answers: 1
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Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.
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The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland
Answers: 1
Chemistry, 22.06.2019 12:30
Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)
Answers: 1
Complete the following problems showing all work Report answers to correct sig figs and units. (Hint...
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