Answer:
Weak bonds require less energy to form than strong bonds
Explanation:
According to Coulomb's law, the force between two species is inversely proportional to the distance between them. That said, the bigger the atoms are, the greater the bond length should be to form a molecule.
As a result, for a greater bond length, the attraction force is lower than for a shorter bond length. This implies that large atoms would form weak bonds and small atoms would form strong bonds.
Bond energy is defined as the amount of energy required to break the bond. If a bond is weak, it would require a low amount of energy to break it. This is also true for energy of formation, as it's the same process taking place in the opposite direction.
Answer : Option B) Plant stomata opening and closing to maintain homeostasis.
Explanation : Claude Bernand was a French Physiologist who first discovered about "homeostasis" which is defined as the controlled stability of the internal milieu, or internal environment, of cells and tissues in plants.
In plants stomatal opening and closing was done for maintaining homeostasis with the external and internal plant environment.
<span>I think There should be a valanced state in every atom. (Valanced state means, 8 electrons in the outer most orbit) In case take a atom has 8 electrons in the outer orbit, so when bonding the two atom to form a molecule, there is a Ionic Bond (because of both atoms has its own valanced electron(8 electrons in outer most orbit).</span>
Explanation:
Ethanol is an alcohol with a wide range of usage to man. It's production is desirable for the following reasons:
- It is a source of energy: ethanol burns like fossil fuels to produce clean and efficient energy for use. In some countries, automobile engines are now designed to consume ethanol instead of fossil fuels.
- It is a renewable source of energy since it is completely produced from biomass. Ethanol is desired because it can easily be replenished when depleted by consumption.
- Producing energy from ethanol is an environmental friendly process. It absorbs more carbon dioxide from the environment. Plants that are used in producing ethanol are cultivated and they act as carbon dioxide absorbers.
- Ethanol burns more cleanly and effectively thereby reducing pollution in the environment.
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