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Ganezh [65]
4 years ago
7

N2 has one triple bond. CH4 has four single bonds which molecule requires more energy to break the bond wjy

Chemistry
1 answer:
kotykmax [81]4 years ago
4 0

Explanation:

As a nitrogen molecule (N_{2}) contains a triple bond between the two nitrogen atoms. Therefore, there is more overlapping taking place as there are two pi bonds and one sigma bond present within a N_{2} molecule.

Hence, in order to break a triple bond high amount of energy is required.

On the other hand, in a CH_{4} all the hydrogen atoms are bonded by a single bond with the hydrogen atom. Hence, there are 4 sigma bonds present in a CH_{4} molecule.

Also, a pi bond is much stronger than a sigma bond.

That is why, N_{2} molecule requires more energy to break the bond.

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What is the main reason why some developing countries fear the increase the free trade policies around the world?
Pepsi [2]

It threatens local industries. This is because local industries are smaller in scale than the industries that have international reach. The local industries cannot compete with the international industries because they cannot keep their prices as competitive because they lack economies of scale.

3 0
3 years ago
ASAP :))
grigory [225]

Answer:

B

Explanation:

Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy. ... In this case, the products, or final state, have more free energy than the reactants, or initial state. Endergonic reactions are non-spontaneous, meaning that energy must be added before they can proceed.

5 0
3 years ago
The total amount of energy before and after a chemical reaction is the same. Therefore, energy is _____.
BabaBlast [244]

Answer:

Option (a) is the correct answer.

Explanation:

The law of conservation of energy states that energy can neither be created nor it can be destroyed. It can only be transformed from one form to another.

Therefore, the total amount of energy before and after a chemical reaction is the same. Thus, energy is conserved.

Therefore, we can conclude that option (a) is the correct answer.

8 0
3 years ago
Read 2 more answers
Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate
Anvisha [2.4K]

Answer:

-3272     kJ/mol

Explanation:

Given and known facts

Mass of Benzene = 0.187 grams

Mass of water = 250 grams

Standard heat capacity of water = 4.18 J/g∙°C

Change in temperature ΔT = 7.48°C

Heat

=250 * 4.18 * 7.48\\=7816.6 \\=7.82

Heat released by benzine is - 7.82 kJ

Now, we know that

0.187 grams of benzene release = -7.82  kJ heat

So, 1 g benzine releases

\frac{ -7.82 }{0.187}\\= -41.8

kJ/g

0.187 * \frac{1}{78.108}=0.00239 mol C6H6

Heat released

= \frac{-7.82}{ 0.00239}

=-3272     kJ/mol

4 0
3 years ago
Which of the following is true about the Lewis structure of NF3? Really need help
Ganezh [65]

Answer:

All of the above.

Explanation:

Hello there!

In this case, according to the definition of the Lewis structures, which are represented by the valence electrons, we first identify that the N atom has five valence electrons and each fluorine has seven valence electrons.

In such a way, we cans say that N is the central atom due to its lower electronegativity, the molecule has 7+7+7+5=26 valence electrons and the three F-N bonds are covalent, therefore the answer is all of the above.

Regards!

7 0
3 years ago
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