4 years ago

What is an ion? What are the two ways in which an ion can be made?

1 answer:

3 0

Answer: Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the ...

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what pressure will be needed to reduce the volume of 77.4 l of helium at 98.0 kpa to a volume of 60.0 l? 76 kpa 126 kpa

nekit [7.7K]

The system follow the Boyle's Law:

$P_1\cdot V_1 = P_2\cdot V_2\ \to\ P_2 = \frac{P_1\cdot V_1}{V_2} = \frac{98\ kPa\cdot 77.4\ L}{60.0\ L} = \bf 126.4\ kPa$

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3 years ago

Match these items. 1. kg measurement of area 2. cm 2 measurement of length 3. L measurement of mass 4. m measurement of volume

Phoenix [80]

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Kg measurement of volume.

cm measurement of area

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List two general properties of molecular compounds

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Low melting points and boiling points. ...Low enthalpies of fusion and vaporization These properties are usually one or two orders of magnitude smaller than they are for ionic compounds.Soft or brittle solid forms. ...Poor electrical and thermal conductivity.

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The formula for dichlorine monoxide

Ugo [173]

Cl2O but the two is a little two after Cl

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How many neutrons does the most common isotope of hydrogen have?

Lorico [155]

Protium - the most common isotope of hydrogen - has no neutrons in its nucleus.

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