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JulsSmile [24]
3 years ago
10

Draw the structure of the following atoms (1) 19/9 F (2)28/14 SI

Chemistry
1 answer:
Svet_ta [14]3 years ago
8 0

Answer:

might help

Explanation:

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If you start with 0.020 g of Mg, how many moles of H2 will you make if the reaction is complete?
irina [24]

If one starts with 0.020 g of Mg, 0.0008 moles of H2 would be made if the reaction is complete.

Going by the balanced equation of reaction in the image, 1 mole of Mg will produce 1 mole of H2 in a complete reaction.

If 0.020 g of Mg is started with:

mole of Mg = mass/molar mass

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Since the mole of Mg to H2 is 1:1, thus, 0.0008 moles of H2 will also be made from the reaction.

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