When a 10 newton force is applied to move 30 meters with an angle of displacement of 25 degrees, the work done is calculated using the formula W= F*d*sin ∅ .Substituting the given dimensions, the answer to this problem is 126.79 joules.
Nitrogen is present in excess.
<h3>What is the no. of moles of nitrogen?</h3>
3Mg + N2 = Mg3N2
Moles of Mg = mass / molar mass = 2.22 / 24.3 = 0.0914
Moles of N2 = 3.75 / 28=0.1339
In conclusion, as we produce less amount of M g3N 2 when we assumed that M g was the limiting reagent, magnesium is the limiting reagent and nitrogen is the excess.
<h3>How can magnesium nitride be made through a direct reaction?</h3>
The elements can directly react to form magnesium nitride, as demonstrated in the equation 3 mg (s)+n2 (g)=Mg3N2 (s).
<h3>What is excess reactant?</h3>
Reactants that are not totally consumed are referred to as "excess reactants," whereas reactants that are completely consumed or reacted are referred to as "limited reactants." How much of the limiting reactants are consumed determines how much product is generated. In this section, the definition of excess reactant, examples, and calculations are discussed.
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Answer:
.122 mols of KCl
Explanation:
<u>Read the explanation </u><u><em>while</em></u><u> looking at the picture.</u>
We star with 15g because it's wat they give us:
<u>15g of KCIO3 will cancel out with 123g of KCIO3</u> (molar mass)
~Grams of KCIO3 are canceled out.~
<u>That 123g of KCIO3 is the same as 1 mol of KCIO3</u>
Then we use mole to mole ratio:
<u>1 mol of KCIO3 equals 2 mols of KCIO3</u> -- 2 moles from the equation
The <u>2 mols of KCIO3 is equal to 2 mols of KCl</u> (from equation)
Multiply the numbers on top. Multiply the numbers on the bottom. Then divide. You get:
This sounds confusing. But the picture below is the format.
The SAME COLOR are the ones that cancel out.
the particles from solid to liquid start to move around faster then it was at the first state