Take the molality and multiply it by the Kb
0.75 × 0.52 = 0.39 C
then add the boiling pt to the 0.39
100 + 0.39 = 100.39 C
Answer:
C, B ,A(in the order of the blanks)
Explanation:
A centrifuge uses centrifugal force to seperate 2 substances with different densities, the lighter one at the top. This cannot be done with homogeneous mixtures
The equation that is represented by the model is = x²-2x-3=(x − 3)(x + 1).
<h3>What are polynomials?</h3>
Polynomials are defined as the mathematical expression that is made up of variables.and coefficients.
The model is +X-x-x- ,
Which is X -2x ( negative minus negative is plus)
Therefore, the equation that is represented by the model is = x²-2x-3=(x − 3)(x + 1)
Learn more about polynomials here:
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The percent yield of reaction = 65.27%
<h3>Further explanation</h3>
Reaction
2Pb(s)+O₂(g)⟶2PbO(s)
mass of Lead(Pb) = 451.4 g
mol of Pb (MW=207 g/mol) :

mol of lead(II) oxide (PbO) based on mol Pb as a limiting reactant(Oxygen as an excess reactant) :

mass of PbO(MW=223 g/mol)⇒theoretical :

The percent yield :
theoretical = 486.14 g
actual = 317.3 g
