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vovikov84 [41]
3 years ago
13

Which correctly describes the laws of conservation?

Chemistry
1 answer:
VashaNatasha [74]3 years ago
5 0

                                                       A is the answer

Venn diagrams are used for comparing and contrasting different topics. The overlapping sections show characteristics that the topics have in common, and the sections that are unique to each topic show the characteristics apply to only that topic.

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A lab analysis of 0.502 g of Scandium (Sc) reaction with Oxygen (O2) from Air resulted
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The empirical formula of the metal oxide would be  Sc_2O_3

<h3>What is empirical formula?</h3>

Mass of scandium = 0.502g

Mass of scandium + oxygen = 0.768g

Mass of oxygen = 0.768 - 0.502 = 0.266g

Mole of scandium = 0.502/44.95 = 0.011

Mole of oxygen = 0.266/16 = 0.017

Divide by the lowest:

Scandium = 0.011/0.011 = 1

Oxygen = 0.017.0.011 = 1.5

Thus, the empirical formula of the compound would be ScO_1.5 or Sc_2O_3

More on empirical formula can be found here:brainly.com/question/14044066

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3 years ago
Which of the following is a molecule but
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In an atom of barium, how many electrons have: <br> ℓ = 0<br><br> mℓ = 1
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First look for the atomic number and that is the electron for barium
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