2 years ago

Explain the relationship between the relative size of an ion and its neutral atom and the charge on the ions

Chemistry

1 answer:

mars1129 [50]2 years ago

3 0

A cation (+) will be smaller than its neutral atom, while anion (-) will be larger than its neutral atom.

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Answer:you observe the light?

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2 years ago

What does the suffix -ide indicate when naming an ionic compound?

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2 years ago

a 1.25g sample of ore containing iron pyrite (FeS2) was pulverized and ignited in air, converting the FeS2 to Fe2O3 and SO2(g).

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Answer:

28.9%

Explanation:

Let's consider the following balanced equation.

2 FeS₂ + 11/2 O₂ ⇒ Fe₂O₃ + 4 SO₂

We can establish the following relations:

The molar mass of Fe₂O₃ is 159.6 g/mol
1 mole of Fe₂O₃ is produced per 2 moles of FeS₂
1 mole of Fe is in 1 mole of FeS₂
The molar mass of Fe is 55.84 g/mol

The amount of Fe in the sample that produced 0.516 g of Fe₂O₃ is:

$0.516gFe_{2}O_{3}.\frac{1molFe_{2}O_{3}}{159.6gFe_{2}O_{3}} .\frac{2molFeS_{2}}{1molFe_{2}O_{3}} .\frac{1molFe}{1molFeS_{2}} .\frac{55.84gFe}{1molFe} =0.361gFe$

The percent of Fe in 1.25 g of the ore is:

$\frac{0.361g}{1.25g} .100\%=28.9\%$

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Use the ruler to determine the length of this object. Record your answer to the nearest tenth. The object is ____ long.

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The object is 2.7 cm long

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