Question 16 options:
This is the answer >>>>>>>>As the phase changes occur, the freedom of motion of the particles increases.
As the phase changes occur, the freedom of motion of the particles decreases.
As the phase changes occur, the freedom of motion of the particles compresses.
As the phase changes occur, the freedom of motion of the particles is constant.
Answer:
A) As the phase changes occur, the freedom of motion of the particles increases.
Explanation:
As the phase changes occur, the freedom of motion of the particles increases.
Answer: The correct answer is: A) Glycosidic bond
Explanation: Cellulose and chitin are both complex carbohydrates made of repeating units of glucose. These repeating units are linked together by glycosidic bonds, specifically beta-glycosidic bonds, which are a type of covalent bond connecting the sugar molecules in a linear fashion.
Nonpolar covalent bonds form when two atoms of the same element or different elements share electrons equally, resulting in a balanced charge distribution. Examples include Methane (CH4) and molecular oxygen (O2). Another case is the CO2 molecule, which is nonpolar because its polar bond moments cancel out.
This leads to a balanced distribution of charges in the molecule, making it nonpolar. Methane, for instance, consists of a carbon atom that shares four electrons equally with four hydrogen atoms, resulting in a bond where the difference in electronegativity between the carbon and hydrogen atoms is minimal.
Another case is CO₂ where the molecule, though consisting of polar bonds, is overall nonpolar because the geometric layout of the molecule allows for the bond moments to cancel each other out, hence no region of the molecule is more positive or negative than any other. Considering the geometry of the molecule is essential when determining the polarity of a molecule with more than one bond.
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