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Lostsunrise [7]
3 years ago
6

Is it called when a substance enters a gaseous phase without boiling?

Chemistry
2 answers:
Helen [10]3 years ago
3 0

Answer:

its called sublimation

algol133 years ago
3 0

Answer:

Boiling is a phase transition from the liquid phase to the gas phase that ... in what is called the “escaping tendency” of the molecules from the phase. ... into the gas phase from a solid or liquid by placing the substance in a closed, ... Gradually, Pw will rise as molecules escape from the liquid phase and enter the vapor phase.

Explanation:

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5 0
3 years ago
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Will make brainliest
Dafna11 [192]

Answer:

Boron

Explanation:

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.

For example

In given atomic model we can see that there are five electrons out side the nucleus it means this atomic model is of that element which have atomic number 5 and it is boron.

It has 5 electron 5 proton and 6 neutrons.

It means its atomic number is five and mass number is 5+6 = 11

8 0
3 years ago
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