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:
Ther answerr is A only solid A.
Explanation:
The density of water is 1 g/cm3 so anything above that will sink, but as you can see solid A dosnt ev en reach one./ so It will float on water. the other two are over 1 g/cm3.
<h2>
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Answer:
Cobalt (Co)
Explanation:
3d^7 is the location of Cobalt's last electron.
0.38g
Explanation:
Given parameters:
Number of formula units = 5.74 x 10²¹
Molar mass of NaOH = 40g/mol
Unknown:
Mass of NaOH = ?
Solution:
The best way to solve this problem is the use the mole concept.
A mole is the amount of substance that contains the avogadro's number of particles.
The avogadro's number of particles is 6.02 x 10²³particles.
Particles = neutrons, protons, electrons, formula units, e.t.c
To solve this problem, find the the number of moles first then convert to mass.
6.02 x 10²³ formula units = 1 moles
5.74 x 10²¹ formula units = 
= 0.95 x 10
moles
Mass of NaOH = number of moles x molar mass = 0.0095 x 40 = 0.38g
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Molar mass brainly.com/question/2861244
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It's false.the reason is explained in the picture
