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.
Answer:
asexual cell
Explanation:there are mainly 2 types sexual and asexual i would say asexual because they grow without another parent and don't have a nucleus.
The frequency of a 4,600 cm wave is 652 Hz
Frequency is the number of waves that pass a fixed point in unit time
Here given data is
Wave = 4,600 cm = 4.6 × 10⁸ nm
We have to calculated frequency = ?
Frequency =v = c/λ
Frequency = 3×10⁸m / 4.6 × 10⁸ nm
Frequency = 652 Hz
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Answer: D) protons.
The other option that would make the most sense would be electrons, however the mass of an electron is so small that is basically negligible, so it's not included in the atomic mass.
Answer:
Answer is given below.
Explanation:
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<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
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<em>Total Hardness = [Ca+2]*{50/20) + [Mg+2]*{50/12) = [200]*{50/20) + [60]*{50/12) = 750 mg/L in terms of CaCO3
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<em>b.) Non-Carbonate hardness = Total Hardness - Carbonate Hardness
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<em>Now here as the Total Hardness is greater than alkalinity ,Thus
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<em>Carbonate Hardness = Alkanlinity = 400 mg/L in terms of CaCO3
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<em>Non-Carbonate hardness = 750 - 400 = 350 mg/L in terms of CaCO3
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<em>c.) As Total hardness is greater than Alkalinity thus Carbonate hardness is equal to the Alkalinity.
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<em>Carbonate hardness = 400 mg/L in terms of CaCO3
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<em>d.) Now as the Total hardness of the ground water is more than 180 mg/L,Thus it needs removal of hardness.
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<em>There are many treatment options for the removal of hardness:
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<em>i) Ion Exchange method
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<em>ii) Lime soda method</em>
