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saw5 [17]
3 years ago
9

I need an answer and explanation pls

Chemistry
1 answer:
OverLord2011 [107]3 years ago
8 0

Answer:

Cl2 + 2NaBr --> 2NaCl + Br2

Explanation:

This is a single displacement reaction where one side of the ionic compound switches with the other.

So, Cl2 + NaBr ---> NaCl + Br2

This isolates the Bromine and puts the Chlorine in it's place.

Then, balance out the equation like so and you should get

Cl2 + 2NaBr --> 2NaCl + Br2

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Given the reaction: 4A1 + 302 - 2A1,O, How many grams of Al will be
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Answer:

The answer to your question is 27 g of Al

Explanation:

Data

mass of Al = ?

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The correct formula for the product is Al₂O₃

Balanced chemical reaction

               4Al + 3O₂   ⇒   2Al₂O₃

Process

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         = 102 g

2.- Convert the moles of Al₂O₃ to grams

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                 x       ----------------  0.5 moles

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                 x = 51 g of Al₂O₃

3.- Use proportions to calculate the mass of Al

                4(27) g of Al --------------- 2(102) g of Al₂O₃

                     x               --------------- 51 g

                        x = (51 x 4(27)) / 2(102)

                        x = 5508 / 204

                        x = 27 g of Al

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