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dusya [7]
3 years ago
8

the periodic table created by Dmitri Mendeleev is very useful to that contain a large amount of information about an atom of a p

articular element based upon his location on tape for his name for the element Argon has the number of 41 how many neutrons does a normal argon possess

Chemistry
1 answer:
alexgriva [62]3 years ago
8 0
Egyptians are running through mexico
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g n the following three compounds(1,2,3) arrange their relative reactivity towards the reagent CH3Cl / AlCl3. Justify your order
Sedbober [7]

Answer:

3 > 2> 1

Explanation:

Aromatic compounds undergo electrophilic substitution reaction which passes through a positively charged intermediate to yield the product.

Substituted benzenes may be more or less reactive towards electrophilic aromatic substitution than benzene molecule depending on the nature of the substituent.

Certain substituents increase the ease of reaction of benzene towards aromatic substitution.

If we look at the compounds closely, we will notice that toluene reacts readily with CH3Cl / AlCl3. This is because, the methyl group is electron donating hence it stabilizes the positively charged intermediate produced in the reaction.

Carbonyl compounds are electron withdrawing substituents hence they decrease the magnitude of the positive charge and hence decrease the rate of electrophilic aromatic substitution.

3 0
3 years ago
Because of the law of motion there are no limits on how fast the roller coaster can go true or false.
Lelechka [254]

Answer False

Explanation: Friction makes it stop at some point. For it to have an unlimited speed goes against beset is first law that states an object in motion with stay in motion unless acted upon by an external force, your force will be the friction of the wheels on the roller coaster

7 0
3 years ago
What is the total temperature change between 3km and 7km above earth's surface
leva [86]
4km I believe is the answer
4 0
4 years ago
HELP PLEASE ITS JUST MULTIPLE CHOICE
morpeh [17]

Answer:

Atoms are indivisible

I had a hard time finding this out.

Explanation: Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible.

6 0
3 years ago
The force needed to make an object with a mass of 5kg accelerate at 10 m/sec2 = Question 5 options:
astraxan [27]

Explanation:

<h3>Here, mass = 5kg </h3><h3> acceleration = 10m/s^2</h3>

<h3>according to the question ;</h3><h3>F = m×a ( from 2nd law of motion)</h3><h3>F = 5kg × 10m/s^2</h3><h3>F = 50kgm/s^2 or NEWTON </h3>

<h3>SO THE FORCE NEEDED IS 50 NEWTON</h3>

<h2>I HOPE THAT THIS ANSWER HELPS YOU </h2>
8 0
3 years ago
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