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AnnZ [28]
2 years ago
5

Write a paragraph on: how Westfield how the rust in their water formed.

Chemistry
1 answer:
Mariana [72]2 years ago
8 0

Answer:

Students have investigated what's going on in the fictional town of Westfield, they learned that the mysterious reddish-brown substance in the water is actually rust, which formed because of a chemical reaction between the iron pipes and the fertilizer substance in the water.

Explanation:

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Given an unknown mixture consisting of two substances, explain how a scientist could use lab techniques to determine whether the
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Arrange the measurements from least to greatest.
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1) 1.8 micrograms(least)
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2 years ago
If you have 1.1 moles of magnesium nitrate then how many grams is that
marysya [2.9K]

Answer: 162.8 grams

Explanation:

Magnesium nitrate has a chemical formula of Mg(NO3)2.

Given that:

Number of moles of Mg(NO3)2 = 1.1 moles

Mass in grams of Mg(NO3)2 = ?

For Molar mass of Mg(NO3)2, use atomic mass of magnesium = 24g, nitrogen = 14g, oxygen = 16g

Mg(NO3)2 = 24g + (14g + 16gx3) x 2

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= 24g + (62g) x 2

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Number of moles = Mass in grams / molar mass

1.1 moles = Mass / 148g/mol

Mass = 1.1 moles x 148g/mol

Mass = 162.8 grams

Thus, there are 162.8 grams of magnesium nitrate.

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Solid magnesium has mass of 1300g and a volume of 743cm . what's the density of magnesium?
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D = m / V

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