Explanation:
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The physical changes are:
- condensation of water vapors
- carving wax
- slicing a banana tearing
- aluminum foil
The chemical changes are:
- bleaching hair
- silver tarnishing,
- frying an egg, and
- burning paper
<h3>What are physical and chemical changes?</h3>
Physical changes are changes which occur in a substance which may alter the physical properties of the substance but does not affect the chemical properties of the substance. Physical changes are easily reversible
In physical changes, no new substances are formed. Example of a physical change is the melting of ice or candle wax.
Chemical changes are changes which alter the chemical properties of a substance and in which new substances are formed. Example of chemical changes are; the rusting of iron, bleaching hair silver tarnishing, frying an egg, and burning paper.
Chemical changes are not easily reversible.
In conclusion, physical changes do not produce new substances while chemical changes produce new substances.
Learn more about physical and chemical changes at: brainly.com/question/18526179
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Answer:
c)Hypertonic solutions have a higher osmotic pressure than that within cells so crenation can occur.
Explanation:
When giving solutions to a patient, we must be careful about the situation because giving an isotonic or a hypertonic solution can be the difference between life or death.
If the person is dehydrated, and we administer an hypertonic solution, the result will be the death, because a hypertonic solution (high concentration of electrolytes) <u>can actually dehydrate the cells,</u> they will lose water by osmosis,<em> because the osmotic pressure is higher outside</em> and water will start to flow from a low concentration state to high concentration state, trying to equilibrate the medium, as we can see in the image below.
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Answer:To calculate the molar mass, first calculate the number of moles of gas using the ideal gas equation. 1 atm. 750 mmHg. (1.00 L). 760 mmHg. 0.0306 mol. L atm.
Explanation: