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Ilya [14]
3 years ago
11

Bromine and nitrogen combine to form nitrogen tribromide (NBr3). How many liters of NBr3 gas are produced when 6.85 L of bromine

reacts with excess nitrogen? Assume conditions are at STP.
Chemistry
1 answer:
dlinn [17]3 years ago
7 0

Answer:

4.567 ltr

Explanation:

both are gases

so

N2 +Br2 =NBr3

balancing

N2 +3B2 = 2 NBr3

now

3 litr of B2 gives 2 liter of NBr3

6.85 litr of B2 gives 2/3 *6.85 litr NBr3 = 4.567ltr

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A radio station broadcasts at a frequency of 590,000 Hz. What is the wavelength of the radio waves?​
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Answer:

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f =  \frac{c}{λ}  \\  \\ λ =  \frac{c}{f}  \\  \\ λ =  \frac{3 \times  {10}^{8} }{590000}  \\  \\ λ =  \frac{3 \times  {10}^{8} }{59 \times  {10}^{4} }  \\  \\ λ =0.0508  \times  {10}^{4}  \: m \\  \\ λ = 508 \times  {10}^{ - 4}  \times  {10}^{4}  \: m \\  \\ λ = 508  \: m

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8 0
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Helpppppppppppppp plllllllzzzzzzzzzz
Serggg [28]

4Fe+3O₂⇒2Fe₂O₃

CO₂+2Cl₂⇒O₂+CCl₄

<h3>Further explanation  </h3>

Equalization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  

2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  

3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

For simple equations, you can experiment with the balance of the number of atoms on the left and right

4Fe+3O₂⇒2Fe₂O₃

CO₂+2Cl₂⇒O₂+CCl₄

  • with variable :

aFe+bO₂⇒Fe₂O₃

Fe , left=a, right=2⇒a=2

O, left=2b, right=3⇒2b=3⇒b=3/2

the equation :

2Fe+3/2O₂⇒Fe₂O₃   x2

4Fe+3O₂⇒2Fe₂O₃

aCO₂+bCl₂⇒O₂+CCl₄

C, left=a, right=1⇒a=1

Cl, left=2b, right=4⇒b=2

O, left=2a, right=2⇒2a=2⇒a=1

the equation :

CO₂+2Cl₂⇒O₂+CCl₄

8 0
3 years ago
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