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Gnesinka [82]
3 years ago
6

This element is found in group 1, period 7 and has the lowest mass in this period. *

Chemistry
1 answer:
liraira [26]3 years ago
3 0

The answer is Francium.

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The kinetic energy within molecules of an object _ when heat is added? Increases decreases or remains the same
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You may find the Lewis dot structure of the CH₃-Br in the attached picture.

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In the Lewis dot structure we represent the unpaired electrons using dots.

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5 0
3 years ago
A multivitamin tablet contains 40 milligrams of potassium. how many moles of potassium does each tablet contain?
katrin2010 [14]
Conversion of mole to grams
k in mole = 1 mole/ atomic mass
K in mole =1/ 39.0983 g/mole
                = 0.255765 g/mole
converting 40 grams of K
 K 40 grams x [ 1 mole/ 39.0983 grams] = 1.0230623 mole
There are 1.0230623 moles of K in 40 K of Potassium

7 0
3 years ago
Read 2 more answers
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