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Leya [2.2K]
3 years ago
7

Please help me with these

Chemistry
1 answer:
padilas [110]3 years ago
8 0
<span>The physical layers of the inner core and outer core form a single compositional layer.

</span>
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Is air matter or energy
MatroZZZ [7]

Air is matter bc it is a gas

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Since silver and gold are both shiny, rare and do not corrode, they are ideal materials for making... what?
LUCKY_DIMON [66]

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Explanation:

Gold and silver  are metals which are malleable, ductile, and lustrous. Also they are noble metals. since they are noble metals they are not affected by acid, oxygen, atmosphere and etc. hence gold and silver are used or suitable for making jewlery.

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A flask contains 0.340 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.
marshall27 [118]
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles. We calculate as follows:

0.340 mol Br2 ( </span>6.022 x 10^23 molecules / mol ) = 2.05 x 10^23 molecules
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3 years ago
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Kay [80]

Answer:

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Explanation:

5 0
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