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Anna11 [10]
3 years ago
14

Suppose you are given samples of pentane, 2,2-dimethylpropane, 2-methylbutane and hexane. how you would go about determining whi

ch substance had the highest boiling point.​
Chemistry
1 answer:
Annette [7]3 years ago
7 0

Answer:

Addiction

Explanation:

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The shape of the H2O molecule is a Bent Triatomic.
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A155-g sample of a unknown substance was heated from 25.0°C to 40.0°C.In the process, the substance absorbed 5696 J of energy. W
Iteru [2.4K]
The answer is: (5696 J) / (155 g) / (40.0 - 25.0)°C = 2.45 J/g·°C 
3 0
4 years ago
Explain what is water of crystallization​
ArbitrLikvidat [17]

Explanation:

In chemistry, water(s) of crystallization or water(s) of hydration are water molecules that are present inside [crystal]s. Water is often incorporated in the formation of crystals from aqueous solutions. ... Water of crystallization can generally be removed by heating a sample but the crystalline properties are often lost

3 0
3 years ago
Answer:
Vlada [557]

Answer:Number of proton present in the nucleus of an atom of sulfur is 16.

Explanation:

Protons, neutrons and electrons are subatomic particles of an atom.

Atomic number of an atom is equal to the total number of protons present in the nucleus of an atom.

Z = total number of protons

Atomic mass of an atom is defined as sum of the number of protons and neutrons present in the nucleus of an atom.

In neutral atom there are equal number of protons and electron.

A = number of proton + number of neutrons

According to question, there are 16 electrons in neutral atom of Sulfur.

in a neutral atom:

Number of electrons = Number of protons = 16

Number of proton present in the nucleus of an atom of sulfur is 16.

7 0
3 years ago
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