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seropon [69]
3 years ago
6

Please help!!

Chemistry
1 answer:
maria [59]3 years ago
5 0

Answer:

Transition metals!

Explanation:

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Answer:Reflection and absorption

Explanation:

When a light falls on an object,some light waves are absorbed by the object,and the rest are reflected back.This reflected light is what make us see the object.

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4 years ago
When butane reacts with Br2 in the presence of Cl2, both brominated and chlorinated products are obtained. Under such conditions
tekilochka [14]

Answer:

Bromine radical formation is carried out in the presence of Br₂ and Cl₂ causing the normal selectivity not to be observed ( this causes the difference in activation energy to be reduced )

Explanation:

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On the basis of selectivity and applying the Arrhenius equation the greater the difference between the activation energies the more the selectivity.

as seen in the formation of primary and secondary radicals in the Bromine radical formation. this difference is caused mainly by the propagation step ( exothermic ) . But the main reason why the the usual selectivity of bromination is not observed is because it Bromine radical formation is carried out in the presence of Br₂ and Cl₂ ( this causes the difference in activation energy to be reduced )

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3 years ago
Consider the reaction 2SO2(g) + O2(g) mc021-1.jpg 2SO3(g). Substance mc021-2.jpgHf (kJ/mol) S (J/(molmc021-3.jpgK)) SO3(g) –396
azamat
This is most likely "-100 kj/mol, spontaneous," but the question is difficult to read
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Alexus [3.1K]

Answer: Option (d) is the correct answer.

Explanation:

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Lattice of water and hydrogen bonding are responsible for the various properties of water like cohesion, adhesion, heat of vaporization etc.

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3 years ago
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Answer:

Explanation:

Oxygen molecules and Nitrogen molecules forms in a very similar way. The attraction between particles of oxygen is great due to its very high electronegativity value. Oxygen has a higher electronegative value compared to nitrogen.

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Oxygen is the second most electronegative atom on the periodic table. To form a bond, it shares the valence electrons in order for its octet to be complete. Pull for the valence electrons between the contributing atoms is very strong due to their large electronegative values. This pull is stronger compared to that between nitrogen atoms.

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