The oxides of nitrogen are biologically reactive substances...

The oxides of nitrogen are biologically reactive substances. NO is a powerful agent for dilating blood vessels; N2O is the anesthetic known as laughing gas; NO2 has an acrid odor and is corrosive to lung tissue. Write balanced chemical equations describing the following reactions for the formation of nitrogen oxides: N2(g) + O2(g) → NO(g) NO(g) + O2(g) → NO2(g) NO(g) + NO3(g) → NO2(g) N2(g) + O2(g) → N2O(g)

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00:01 Hi, in this question we are given with 4 equations and we are asked to balance them.

00:05 The first equation is here, n2 plus o2 gives no.

00:10 We have nitrogen atoms and oxygen atom on the both side.

00:14 Here nitrogen is 2 in number and oxygen is also 2.

00:18 Here nitrogen is 1 and oxygen is also 1.

00:22 Therefore, if we put 2 coefficient in front of no, then we will be having 2 nitrogen atom and 2 oxygen atom.

00:31 Hence the reaction is balanced now.

00:33 We can rewrite it as n2 plus o2 gives 2no.

00:42 Now the second equation we have is no plus o2 gives no2.

00:48 Here we have nitrogen and oxygen atoms.

00:51 Nitrogen is 1 in number and oxygen is 3.

00:56 Here nitrogen is 1 and oxygen is 2 in number.

00:59 We can see nitrogen is balanced but oxygen is not balanced.

01:04 We have odd number in reactant and even number in product.

01:09 Therefore, if we put 2 coefficient in front of no, then here we will be having 2 nitrogen atom and now we can see we have 2 plus 2 that is 4 oxygen atoms.

01:23 But here we can see we have 1 nitrogen and 2 oxygen.

01:28 Hence we can put 2 coefficient in front of here also.

01:31 Now we have 2 nitrogen and 4 oxygen atom.

01:35 This is the balanced equation.

01:37 We can rewrite it 2no plus o2 gives 2no2...

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