D. Changes
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It’s Thai right? I want to help but don’t know how to answer this question.
Answer: A. Diethyl ether has a very low miscibility in wate
The fact that the diethyl ether is miscible or not in water <u>does not imply a ris</u>k for the person who is working with this reagent in the laboratory.
However, the fact that diethyl ether forms explosive peroxides and that it is highly flammable implies that there is a risk of explosion when exposed to air and sunlight. On the other hand, as option C mentions, if a person inhales a large quantity of this reagent, they may lose consciousness and suffer some injury when fainting, due to the powerful anesthetic effect of this reagent.<u> In conclusion, options B, C and D are statements that imply safety problems associated with the use of diethyl ether in the laboratory, while option A does not imply it.</u>
Answer:
C. Yes, if each sample contains 6.02 x 10²³ atoms.
Explanation:
It is possible for each sample to contain 1 mole of each sample if and only if each of the sample if made up of 6.02 x 10²³ atoms.
6.02 x 10²³ atoms is the Avogadro's number. This number is equivalent to a mole of a substance.
- If the amount of matter in the given substance is at least one mole, it is possible that they are made up of one mole each of each substance.
- If they contain lesser amount of atoms, then it is not up to one mole of substance.
- But if it is greater, then, we can have even more than one mole of substance.
A mole is simply a unit of measurement and it is equivalent to 6.02 x 10²³ atoms.
Answer:
- Lipids: used for long-term energy storage
- Nucleic acids: used for storing and transmitting genetic information
- Protein: used for tissue repair and growth
- Carbohydrates: used for energy
Explanation:
These terms simply have to be memorized, but understanding their structure can help you gain a better grasp of their functions. Lipids have fatty acid chains with lots of bonds, so they are high energy. Nucleic acids have pieces that can be rearranged into many combinations that can be read by certain structures. Proteins are composed of different building blocks with different properties. The sum of these properties is the function of the protein. Lastly, carbohydrates have compact monomers that are extremely easy to break apart into energy.
