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NISA [10]
3 years ago
7

What is convection cell​

Chemistry
1 answer:
kkurt [141]3 years ago
3 0

Answer:

Explanation:

a self-contained convective zone in a fluid in which upward motion of warmer fluid in the center is balanced by downward motion of cooler fluid at the periphery.

You might be interested in
How many protons do atoms of lead have?
Dahasolnce [82]

Answer: exactly 82 protons

Explanation:

Since lead has 82 protons the number of neutrons in an atom of lead-204 is 204-82=122. Similarly, lead-206 has 124 neutrons, lead-207 has 125 neutrons and lead-208 has 126 neutrons.

You welcome :)

4 0
2 years ago
Explain why all glassware must be dry and the solvent anhydrous during formation and reaction of a grignard reaction. Further, e
mario62 [17]

Answer:

The glassware and solvent for the production of grignard reagent and its reaction should by dry and anhydrous so as to prevent the conversion of the grignard reagent into saturated alkane. Acetone, is not a good solvent for the generation of grignard reagent because it has the potential of forming alcohol.

Explanation:

Grignard reagent is a compound formed by the reaction of halide of alkyl or alkene with magnesium metal. This makes the compound more nucleophilic. Thus the availability of an electrophile around it will evoke a quick reaction. The presence of water in an acidic condition will generate hydroxonium ions which are highly electrophilic. There will therefore be an introduction of hydrogen ions to the grignard reagent and which will displace the MgBr leading to the formation of alkane.

Acetone tends to produce alcohol when they are exposed to grignard reagent, thus they are not appropriate to be used as solvent. This is due to the resultant highly electrophilic nature of the carbonyl carbon on the acetone, thus will react with the nucleophilic carbon on the grignard. The reaction can be represented as follows:

RMgBr + CH3(CO)CH3 + H (with hydrogen ions) >>>RCOH + Mg(OH)Br

7 0
3 years ago
How to tell which acid whill have the hightest perceent ionization
icang [17]

We can tell which acid which have the highest percent ionization on the basis of pH value.

<h3>What is percent ionization?</h3>

The % ionized indicates how much of the original chemical has ionized. As a result, we compare the ion concentration in solution to the neutral species' original concentration.

If any acid have a high pH value then they must show high percent ionization because they are strong in nature and show full dissociation.

Hence acids with high pH value will show highest percent ionization.

To know more about percent ionization, visit the below link:

brainly.com/question/3229194

#SPJ4

6 0
2 years ago
) A magnet that’s domains remain aligned when removed from a magnetic field.
True [87]

Answer:

Above the Curie temperature, a magnet permanently loses all or some of its magnetism. External magnetic fields: Strong, opposing magnetic fields can cause the magnetic domains to lose their orientation and relax into a lower state of energy where they are not aligned.

Explanation:

4 0
2 years ago
Please help me fast
alisha [4.7K]

Answer:

60.7 mole

Explanation:

for every 4 moles of iron 3 moles of oxygen is used.

So, moles of oxygen = \frac{3 * 80.9}{4} = 60.675

4 0
2 years ago
Read 2 more answers
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