The enthalpy change for the reaction 2K + S + K2S using the following thermochemical reactions is mathematically given as
dn=70.7kg
<h3>What is the enthalpy change for the reaction?</h3>
Generally, the equation for the Chemical reaction is mathematically given as
2k+s----->K2S
Therefore
KS+K----->K2S
Therefore
dn=dn1+dn2
dn=32.5+38.2
dn=70.7kg
In conclusion, the enthalpy change is
dn=70.7kg
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Answer:
Water is a compound and not a mixture. The reasons are the following:
1) It is held tightly through bonds called chemical bonds which is the characteristic of compound and not mixture.
2) It cannot be separated by physical means but can be separated by chemical means.
His the answer I hope it helps
Answer:
A. 15
Explanation:
From the equation we see that 6 water particles are used to make 1 particle of the hexose.
That means, that to make 1 mole of the hexose, we need 6 moles of water (as a mole is an unit of count of particles).
To make 2.5moles of the hexose, we need 2.5*6 moles of water, so 15 moles of water.
Answer:
Seven
There are seven periods in the periodic table