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pishuonlain [190]
3 years ago
10

In which of the following are the symbols and names for the ions given correctly?

Chemistry
1 answer:
Ne4ueva [31]3 years ago
4 0

Answer: Option (A) is the correct answer.

Explanation:

The name of OH^{-} ion is hydroxide.

Name of  PO^{3-}_{3} ion is phosphite.

Name of  PO^{3-}_{4} ion is phosphate.

Name of  NH^{+}_{4} ion is ammonia.

Name of  C_{2}H_{3}O_{2}^{-} ion is acetate.

Name of  C_{2}O_{4}^{-} ion is oxalate.

Thus, we can conclude that the symbols and names for the ions given correctly is OH-:hydroxide

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Explanation:

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4 Al + 3 O2 --> 2 Al2O3
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Answer:

The answer to your question is 7.4 moles of Aluminum

Explanation:

Data

moles of Al = ?

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Balanced chemical reaction

                4 Al  +  3 O₂  ⇒  2 Al₂O₃

To solve this problem use proportions and cross multiplication. Use the coefficients of the balanced chemical equation.

                4 moles of Aluminum ----------------- 2 moles of Al₂O₃

                 x                                  ----------------- 3.7 moles of Al₂O₃

                            x = (3.7 x 4) / 2

                            x = 14.8 / 2

                            x = 7.4 moles of Aluminum

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