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Because molecular bonds are not as strong as ionic bonds, they require less energy (heat) to break apart. This translate to less heat being required to move from one state to the next (melting, boiling, freezing, condensing) and thus a lower melting and boiling point.
Answer:
As they absorb energy, they are broken.
Explanation:
Solutes dissolve when they interact with water. This is because, the attraction of solute particles with each other weakens and become replaced by solute-solvent interaction. As the water surrounds the solute, the solute is now said to be hydrated.
Energy is required to break solute-solute bonds. This energy absorbed in breaking solute-solute bonds is compensated for by the energy liberated when solute particles are hydrated.
If energy required to break solute-solute interaction is less than the energy liberated when solute particles are hydrated, the substance will dissolve in water.
Hence, as a substance dissolve in water, energy is absorbed when solute-solute interactions are broken.
Answer: A.nitrogen,oxygen,and argon
Explanation:
An independent variable is the variable that is changed or controlled in a experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured. so like is math. the input variable is the independent variable. the output is the dependent variable because it depends on the input variables.
