Answer:
chemical energy transgormation takes place during cellular respiration
Answer:

Explanation:
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In this case, the undergone chemical reaction turns out:

In such a way, based on the reacting 21.3 g of magnesium chloride that are consumed the following stoichiometric procedure leads to the required grams of solver chloride precipitate consider their 1 to 2 mole relationship respectively:

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Answer:
Option (B)
Explanation:
Crystals are usually defined as those substances that are comprised of atoms, ions, and molecules, and they are oriented in a very well-developed and ordered microscopic structure. These crystals are interlinked to one another by strong chemical bonds, namely the metallic, covalent, ionic and Vander Waals bond. In nature, these crystals form when any liquid undergoes cooling and solidifies.
The study of crystals is commonly known as crystallography and is directly associated with the minerals.
Thus, the correct answer is option (B).
Answer:
The C22- ion is stable
Explanation:
The C22- ion is a stable ion having a bond order of three. It has a favourable stabilization energy of 6∆ compared to 4∆ in C2. In the carbide ion carbon firms three bonds rather than two in dicarbon, hence the formation of the carbide ion is preferred. The molecular orbital configuration of the carbide ion is shown in the image attached.