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arlik [135]
4 years ago
9

What is the balanced equation for Al+Fe3N2>AlN+Fr?

Chemistry
1 answer:
Ymorist [56]4 years ago
3 0

Answer:

2 AL + Fe3N2 = 2 ALN + 3 Fe

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Which observation illustrates the law of conservation of mass?
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The conservation of mass states that the total mass of reactants present before the reaction occurs is equal to the total mass of products after the reaction. From the choices, the second choice deems fit for the description of the law.
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What is the frequency of a 4,600 cm wave?
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A groundwater (GW) was analyzed for ions and the results are reported below: Ca2+ = 200 mg/L (as Ca2+) Mg2+ = 60 mg/L (as Mg2+)
garri49 [273]

Answer:

Answer is given below.

Explanation:

<em />

<em>Alkalinity = 400 mg/L in terms of CaCO3  </em>

<em>a.) Total Hardness is defined as the sum of calcium and magnesium iion concentration in terms of CaCO3 </em>

<em> </em>

<em>Total Hardness = [Ca+2]*{50/20) + [Mg+2]*{50/12) = [200]*{50/20) + [60]*{50/12) = 750 mg/L in terms of CaCO3 </em>

<em> </em>

<em>b.) Non-Carbonate hardness = Total Hardness - Carbonate Hardness </em>

<em> </em>

<em>Now here as the Total Hardness is greater than alkalinity ,Thus </em>

<em> </em>

<em>Carbonate Hardness = Alkanlinity = 400 mg/L in terms of CaCO3 </em>

<em> </em>

<em>Non-Carbonate hardness = 750 - 400 = 350 mg/L in terms of CaCO3 </em>

<em> </em>

<em>c.) As Total hardness is greater than Alkalinity thus Carbonate hardness is equal to the Alkalinity. </em>

<em> </em>

<em>Carbonate hardness = 400 mg/L in terms of CaCO3 </em>

<em> </em>

<em>d.) Now as the Total hardness of the ground water is more than 180 mg/L,Thus it needs removal of hardness. </em>

<em> </em>

<em>There are many treatment options for the removal of hardness: </em>

<em>i) Ion Exchange method </em>

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