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Feliz [49]
3 years ago
7

Is it possible for a balloon with an initial pressure of 200.0 kPa to naturally expand to four times its initial volume when the

temperature remains constant and atmospheric pressure is 101.3kPa?
Chemistry
1 answer:
seropon [69]3 years ago
3 0
Yes it is possible for a balloon to expand under these conditions. When objects are exposed to an atmospheric pressure beyond their capabilities, their physical characteristics change. This is because, molecules within the balloon are constantly moving and reacting to its external environment.
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What are the similarities and differences for the properties of copper (II) sulphate and copper?
ivann1987 [24]

It is to do with the ionisation of the atom. Copper is a metal, so it will lose electrons. When reacted with a non-metal, it will form an ionic bond.

In copper (I) sulphate, the copper ions have a charge of +1, ie they have lost ONE electron each.

Copper (I) sulphate has the chemical formula Cu2SO4. Each ionic bond involves two Cu+1 ions and a sulphate ion (SO4.

In copper (II) sulphate, the copper ions have a charge of +2, ie they have lost TWO electrons each.

Copper (II) sulphate has the chemical formula CuSO4. Each ionic bond involves a single Cu+2 ion and a sulphate ion (SO4).

So, really, it’s down to the chemical structure and the ionisation of the atom. Apart from the chemistry, copper (I) sulphate a very obscure chemical. Although, after a bit of googling, I have managed to find some info and vendors, it appears that this chemical is rarely seen and doesn’t have many practical uses.

Copper (II) sulphate, on the other hand, is incredibly common. It’s in every school chemistry lab. If someone says “copper sulphate” they will be talking about this chemical, not copper (I) sulphate. In pure form, it is a boring white powder, but when hydrated, it takes on it’s better known blue colour, with blue crystals and blue solution.

Hope this helps.

3 0
2 years ago
In which set of elements would all members be expected to have very similar chemical properties?
zepelin [54]

Answer:

each group of the periodic table.

example group 7 - fluorine, chlorine, bromine, iodine, astatine, tennessine

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How is emission spectra produced?
gulaghasi [49]

Answer:

Atomic emission spectra are produced when excited electrons return to the ground state.

Explanation:

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Because the sub gives us heat when the moon blocks it it also blocks the path of heat
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