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3 years ago

(क) लेखक के मन में नदियों के प्रति कैसे भाव थे?नदियों से होने वाले प्रमुख दोलाभ लिखिए।

Chemistry

2 answers:

bija089 [108]3 years ago

5 0

Answer:

Yes this is true because I speak English

Levart [38]3 years ago

4 0

Lol.... too funny
Nope can’t read that at all.

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Which of the following combinations of information would allow you to calculate concentration in ppmv? Check all that apply. mol

kakasveta [241]

Answer:

Explanation:

-mass of solute, density of solute, and volume of solution

-volume of solute, mass of solution, and density of solution

3 0

2 years ago

What is the velocity of a 485 kg elevator that has 5900 J of energy?

Ganezh [65]

The velocity of a 485 kg elevator that has 5900 J of energy is 108.6 m/s

<h3>What is the velocity of the elevator?</h3>

A moving elevator possesses kinetic energy due to its motion.

The velocity of the elevator is calculated from the formula of kinetic energy.

The kinetic energy formula is : Kinetic energy = ¹/₂mv₂

The velocity, v = √2KE/m

v = √(2 * 5900/485)

v = 108.6 m/s

In conclusion, the velocity of the elevator is calculated from the kinetic energy and mass of the elevator.

Learn more about velocity and kinetic energy at: brainly.com/question/25959744

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1 year ago

A 250 cm^3 solution containing 1,46 g of sodium chloride is added to an excess of silver nitrate solution. The reaction is given

faust18 [17]

Answer:

The mass of the precipitate that AgCl is 3.5803 g.

Explanation:

a) To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

We are given:

Mass of solute (NaCl) = 1.46 g

Molar mass of sulfuric acid = 58.5 g/mol

Volume of solution = $250 cm^3 =250 mL$

$1 cm^3= 1 ml$

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{1.46g\times 1000}{58.5g/mol\times 250}\\\\\text{Molarity of solution}=0.09982 M$

0.09982 M is the concentration of the sodium chloride solution.

b) $NaCl (aq)+AgNO_3 (aq)\rightarrow AgCI(s)+NaNO_3(aq)$

Moles of NaCl = $\frac{1.46 g}{58.5 g/mol}=0.02495 mol$

according to reaction 1 mol of NaCl gives 1 mol of AgCl.

Then 0.02495 moles of NaCl will give:

$\frac{1}{1}\times 0.02495 mol=0.02495 mol$ of AgCl

Mass of 0.02495 moles of AgCl:

$0.02495 mol\times 143.5 g/mol=3.5803 g$

The mass of the precipitate that AgCl is 3.5803 g.

3 0

3 years ago

Magnesium hydroxide is used as an antacid in milk of magnesia and reacts with hydrogen chlrode in the stomach to form water and

8_murik_8 [283]

Mg(OH)2 +2HCl---> MgCl2+2H2O

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2 years ago

Does NH3 dissolve in acetone?

Sladkaya [172]

Acetone will react with ammonia. Acetone will act as an Lewis Acid and ammonia will act as a Lewis Base in this situation. The nitrogen in NH3 is very reactive because of its lone pair of electrons(The nitrogen is delta -ve), so it will attack the carbon cation center of the acetone (which is delta +ve).

8 0

3 years ago

(क) लेखक के मन में नदियों के प्रति कैसे भाव थे?नदियों से होने वाले प्रमुख दोलाभ लिखिए।​

(क) लेखक के मन में नदियों के प्रति कैसे भाव थे?नदियों से होने वाले प्रमुख दोलाभ लिखिए।