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vesna_86 [32]
3 years ago
14

Which statement is true about Hf and HF?

Chemistry
1 answer:
AfilCa [17]3 years ago
5 0
3 bc Hf is an element hafnium and HF is compound hydrogen flouride
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The oxidation number of Na in NaCl a. 0 b. -1 c. +1 d. -2 e. +2
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NaCl:

Na = + 1

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4 0
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a scientist uses 68 grams of CaCo3 to prepare 1.5 liters of solution. what is the molarity of this solution?
victus00 [196]

Answer: 0.4533mol/L

Explanation:

Molar Mass of CaCO3 = 40+12+(16x3) = 40+12+48 = 100g/mol

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Xg of CaCO3 will dissolve in 1L i.e

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7 0
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D

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5 0
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