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vladimir2022 [97]
3 years ago
5

1.

Chemistry
2 answers:
astraxan [27]3 years ago
7 0
1) electric energy

2) toaster

3) music heard from a radio
Fudgin [204]3 years ago
7 0

Answer:

1.Electrical energy

2. Toaster

3. Music heard from a radio

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Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can act
Leya [2.2K]

Answer:

Option A=> -NHCOCH3 and option C = -CH3.

Explanation:

The option A that is -NHCOCH3 is CORRECT because it possesses lone pair of electron with the exception of group 7A elements. It is this lone pair that is used in the Activation of the ring towards substitution. Other groups that falls into this group are; OCH3, alkyls and many others.

Option B that is -COOH is good group for withdrawal of electron through Resonance. Other examples are NO2, -CN and SO3H.

Option C falls to the same category as option A above that is Activation of the ring towards substitution.

Option D falls to the same category as option B above that is group for withdrawal of electron through Resonance.

7 0
3 years ago
Atomic number and mass of H
yuradex [85]

The atomic number of Hydrogen is 1, and the mass is 1.008.

3 0
3 years ago
Read 2 more answers
49.Which of the following statements regarding chemical equilibrium is true?
crimeas [40]
A asystem at equilibrium stops
8 0
3 years ago
At a pressure of 19.95kPa, 35.8g of carbon dioxide at a temperature of 27.5C would result in what volume of gas?
adell [148]

Answer:

volume of gas=101.94L

Explanation:

Suppose given gas follows the ideality nature of gas

PV=nRT

n=35.8/44mol=0.814 mol

P=0.197atm

T=27.5C=300.5K

R=0.0821atm/mol/K

after putting all value we get,

V=101.94L

volume of gas=101.94L

3 0
2 years ago
the speed limit is posted as 35 km/hr . your speedometer reads that you are going 40 miles/hr. are you speeding?
Morgarella [4.7K]
No, because 40 miles is the same as nearly 25 km/h. 
4 0
3 years ago
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