Answer:
The remaining electron will go in the 2p orbital. Therefore the B electron configuration will be 1s22s22p1.
Exothermic reaction discharges energy in forms of
light, heat or sound, thus it is represented by negative flow of heat. In this
equation:
<span><span>
NaOH (aq) + H2SO4 (aq)
</span>à<span>
H2O (l) + Na2SO4 (aq)</span></span>
<span>
When the solution of Sodium hydroxide is added to the Sulphuric acid, water and Sodium
sulfate is produced. To balance this, we put (2) two on Sodium hydroxide and (2)
two on water.</span>
<span><u>
2</u><span>NaOH (aq) +
H2SO4 (aq) </span>à<u>
2</u><span>H2O
(l) + Na2SO4 (aq)</span></span>
<span> </span>
The mole ratio would be 2:2:2
If I did the math right .. it would be 84.46grams
This is a double replacement because both Copper and Sodium reacted with each other compounds , hence "double"
