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finlep [7]
3 years ago
6

4+4=?

Chemistry
2 answers:
satela [25.4K]3 years ago
8 0
Hmm trick question
* runs and hides forever *
lesya692 [45]3 years ago
3 0

Answer:

8

Explanation:

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3 years ago
What is the atomic number of an atom?​
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Answer:

The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom

Explanation:

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3 years ago
Read 2 more answers
The momentum of an object is in the same direction as its
fredd [130]
The direction<span> of </span>the momentum<span> is the </span>same<span> as the </span>direction<span> of the velocity of the ball. </span>
8 0
2 years ago
Making a pancake from batter is an example of blank change
lesantik [10]

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3 years ago
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2 NO + O22 NO2 is second order in NO and first order in O2. Complete the rate law for this reaction in the box below. Use the fo
riadik2000 [5.3K]

Answer : The value of rate of reaction is 1.35\times 10^{-8}Ms^{-1}

Explanation :

Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

The given chemical equation is:

2NO+O_2\rightarrow 2NO_2

Rate law expression for the reaction is:

\text{Rate}=k[NO]^a[O_2]^b

As per question,

a = order with respect to NO  = 2

b = order with respect to O_2 = 1

Thus, the rate law becomes:

\text{Rate}=k[NO]^2[O_2]^1

Now, calculating the value of rate of reaction by using the rate law expression.

Given :

k = rate constant = 9.87\times 10^3M^{-2}s^{-1}

[NO] = concentration of NO = 7.86\times 10^{-3}M

[O_2] = concentration of O_2= 2.21\times 10^{-3}M

Now put all the given values in the above expression, we get:

\text{Rate}=(9.87\times 10^3M^{-2}s^{-1})\times (7.86\times 10^{-3}M)^2\times (2.21\times 10^{-3}M)^1

\text{Rate}=1.35\times 10^{-8}Ms^{-1}

Hence, the value of rate of reaction is 1.35\times 10^{-8}Ms^{-1}

7 0
2 years ago
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