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xz_007 [3.2K]
2 years ago
9

What will a soccer player need to do to change a ball’s position?

Chemistry
2 answers:
jek_recluse [69]2 years ago
5 0

Answer:

He must set the ball in motion by applying force in the desired direction.

Explanation:

That is how the soccer player will change the ball's position.

Have a good day :)

kati45 [8]2 years ago
4 0

Answer:

4. He must identify the location of the ball.

Explanation:

If a soccer player needs to change his position, then he will need to identify the location of the ball.

hope this helped.

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How many grams of NH3 can be produced from 2.30 mol of N2 and excess H2.
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<h3>Answer:</h3>

78.34 g

<h3>Explanation:</h3>

From the question we are given;

Moles of Nitrogen gas as 2.3 moles

we are required to calculate the mass of NH₃ that may be reproduced.

<h3>Step 1: Writing the balanced equation for the reaction </h3>

The Balanced equation for the reaction is;

   N₂(g) + 3H₂(g) → 2NH₃(g)

<h3>Step 2: Calculating the number of moles of NH₃</h3>

From the equation 1 mole of nitrogen gas reacts to produce 2 moles of NH₃

Therefore, the mole ratio of N₂ to NH₃ is 1 : 2

Thus, Moles of NH₃ = Moles of N₂ × 2

                                  = 2.3 moles × 2

                                  = 4.6 moles

<h3>Step 3: Calculating the mass of ammonia produced </h3>

Mass = Moles × molar mass

Molar mass of ammonia gas = 17.031 g/mol

Therefore;

Mass = 4.6 moles × 17.031 g/mol

         = 78.3426 g

         = 78.34 g

Thus, the mass of NH₃ produced is 78.34 g

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