Answer:
Chemical Property describes the way substances react with other substances to form new substances.
Explanation:
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The first basic metals on the periodic table are alkali metals.
Scientific law
Explanation:
A scientific law is a term that refers to a fact that naturally occurs in the universe.
Scientific laws are natural laws and they hold true.
- Scientific law is a well tested idea that holds through for a range of natural events.
- Scientific theories are explanations of phenomenons drawn from series of tests.
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M P₂O₅ = 31g×2 + 16g×5 = 142g/mol
1 mole of P₂O₅ contains 5 moles of atoms
5 moles of atoms = 30,01×10²³ a.
142g ----------- 30,01×10²³ a.
0,69g ---------- X
X = (0,69×30,01×10²³)/142
X = 0,14626×10²³ = 1,4626×10²² atoms
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