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natita [175]
3 years ago
8

Based upon the location of group iv on the periodic table, the ionic charge of the elements in it should be:

Chemistry
1 answer:
ruslelena [56]3 years ago
3 0
Periodic table is a table of elements arranged in periods and groups in terms similar chemical and physical characteristics.The ion charge of an element depends on the number of electrons may loose or gain to form a stable ion. Elements in group iv have four electrons in the outermost energy level, therefore their ionic charge would be +4 or - 4 since they can gain or loose 4 electrons to form ions.
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The reaction of 60.0 g of aluminum oxide with 30.0 g of carbon produced CO gas and 22.5 g of aluminum metal. What is the percent
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Answer:

The answer to your question is: 70.8%

Explanation:

Data

Al₂O₃ = 60 g

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MW Al₂O₃ = 102 g

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MW Al = 54 g

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                 Al₂O₃    +     3C     ⇒       3 CO    +    2 Al

Limiting reactant

                            102 g of Al₂O₃  -------------- 54 g Al

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                            36 g of C ------------------ 54 g of Al

                            30 g of C ------------------  x

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Limiting reactant = Al₂O₃

Percent yield = \frac{22.5}{31.8} x 100

Percent yield = 70.75 %

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