sierravick123owr441
27.07.2019 •
Chemistry
How can you tell whether a fat contains primarily saturated or unsaturated fatty acids? a. solid fats that melt at a high temperature are unsaturated b. oils that remain a clear color in the refrigerator are unsaturated c. beef fat is considered unsaturated because cattle eat only plant foods d. all plant oils are unsaturated because they are liquid at room temperature?
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Ответ:
Oils that remain a clear color in the refrigerator are unsaturated.
Unsaturated fats are those with double bonds in their fatty acid chain. These are known as being "healthier" than the saturated fats, which don't have any double bonds. Unsaturated fats, when put into the refrigerator are harder to become solid and change color than saturated fats because the double bonds make the structure to have less intermolecular interactions by steric hindrance and thus a lower melting point.
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Ответ:
Option (a) is the correct answer.
Explanation:
Plasma is a state of matter which consists of hot ionized gas that has same number of positively charged ions and negatively charged electrons.
Being hot in nature, particles in plasma move more rapidly.
Thus, we can conclude that out of the given options, plasma's are good conductors of electricity because they have mobile charged particles.