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Ivahew [28]
3 years ago
10

CHEMISTRY QUESTION 20 pts.... URGENT

Chemistry
1 answer:
Damm [24]3 years ago
7 0

Answer:

E i is like Math so I think this will help you

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An oxide of phosphorus contains 56.4% phosphorus and 43.6% oxygen. It's relative molecular mass is 220. Find both the empirical
sladkih [1.3K]
Moles of P = 56,4g/30,974g/mole = 1,82 moles P
moles of O = 43,6/15,999 = 2,73 moles of O

converting to the simplest ratio:
For P : 1,82/1,82 = 1
For O : 2,73/1,82 = 1,5

1 P and 2 oxygens.
PO2 -> the empirical formula

hope this help
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When you round up the answer is 2.6 atoms of Li
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2 years ago
In a chemcial reaction, substances
Fofino [41]

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Marta_Voda [28]
I believe it would be the first option. It forms iron oxide (rust) when exposed to moisture and air.
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In a Lewis structure, why must pairs of unshared of lone pairs if dots be placed around the outside of some of the atoms
Maksim231197 [3]

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In a Lewis symbol, the symbol for the element is used to represent the atom and its core electrons. Dots placed around the atom are used to indicate the valence electrons. ... In 1916, Gilbert Newton Lewis, an American chemist, suggested that molecules were formed when atoms shared pairs of outer electrons.

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