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joja [24]
3 years ago
15

In terms of electrons why does a cation have a positive charge

Chemistry
1 answer:
ANTONII [103]3 years ago
5 0
Because a CATION is a name for a POSITIVE ION and it is given that name if an atom loses an electron.

Also the roman numerals after a transition metals name tell u its charge E. G. Iron(II) will have the charge Fe2+
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Answer:

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According to Hess’s law, the chemical equation can be treated as algebraic expressions and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.

P_4(s)+6Cl_2\rightarrow 4PCl_3  \Delta H_1=-2439kJ (1)

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Adding 1 and 2 we get,

4PCl_5(g)\rightarrow 4PCl_3(g)+4Cl_2 \Delta H_3=\Delta H_1+\Delta H_2=-2439+3438=1000kJ   (4)

Now dividing equation (4) by 4, we get

PCl_5(g)\rightarrow PCl_3(g)+Cl_2

\Delta H=\frac{\Delta H_3}{4}=\frac{1000kJ}{4}=250kJ   (4)

8 0
3 years ago
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irinina [24]

Answer:

6 m/s^2

Explanation:

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La respuestas de lo que descirbiste es 18.02 gramos

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4 years ago
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