Melting is the phase change when solid becomes liquid
4(NH₄)₃PO₄ + 3Pb(NO₃)₄ → Pb₃(PO₄)₄ + 12NH₄NO₃
Explanation:
(NH₄)₃PO₄ + Pb(NO₃)₄ → Pb₃(PO₄)₄ + NH₄NO₃
Balancing this equation;
We simply use a mathematical approach by solving simple algebraic equations.
a(NH₄)₃PO₄ + bPb(NO₃)₄ → cPb₃(PO₄)₄ + dNH₄NO₃
a,b,c and d are the coefficients that will balance the equation;
Conserving N: 3a + 4b = 2d equation 1
H: 12a = 4d
P; a = 4c
O; 4a + 12b = 16c + 3d
Let us make a = 1;
c = 
d = 3
solving for b;
from (i); 4b = 2d -3a = 2(3) - 3(1) = 3
b = \frac{3}{4}
Now multiply a, b, c and d by 4;
a = 4 , b = 3 , c= 1 and d = 12
4(NH₄)₃PO₄ + 3Pb(NO₃)₄ → Pb₃(PO₄)₄ + 12NH₄NO₃
Learn more:
Balanced equation brainly.com/question/11102790
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6.0 will the pH at the neutralization point of 0.00812 m Ba(OH)2 be when titrated with HCl.
<h3><u>What are </u><u>
titration reactions ?</u></h3>
A titrant/titrator, a standard solution with fixed volume and concentration, is prepared as part of the titration procedure. When an endpoint or equivalence point is reached, the titrant is made to continue reacting with the analyte, and at that point, the amount of titrant consumed may be used to calculate the analyte's concentration. Alternately, titration is the application of the stoichiometry principle to determine an unknown solution's concentration.
The technique begins by adding a very little quantity of analyte to a beaker or Erlenmeyer flask. Under a calibrated burette or chemical pipetting syringe containing the titrant, a little quantity of an indicator (such as phenolphthalein) is inserted.
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The chemical formula is MgF2 as mg looses two electrons and fluorine gains one. Therefore you need two fluorides to gain two electrons
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