Answer:
C. 70%
Explanation:
Atomic Mass of the silicon = 28 g.
Atomic mass of the Carbon = 12 g.
Total mass of the Silicon Carbide = 28 + 12
= 40 g.
Now, Using the formula.
% Composition = Mass of the silicon/Total mass of the compound × 100 %
= 28/40 × 100 %
= 70 %
Hence, % composition of the silicon in SiC is 70%
Answer:
C. Energy can change one form to another
Explanation:
There are many different types (forms) of energy
Answer:
feed = 220.77 kg/s; maximum production rate of solid crystal = 416 kg/s; the rate of supplying fresh feed to obtain the production rate = 1.6
Explanation:
Material or mass balance can be used to estimate the mass flow rates of all the streams in the diagram shown in the attached file.
Overall balance: 
Water: 
Using substitution method, we have:
= 220.77 kg/s
= 4.16 kg/s
The maximum production rate of solid crystal is
= 10*4.16 = 416 kg/s
Around evaporator:

kg/s
Around the mixing point:

Solid crystal: 
Using the last two equations, we can obtain:


kg/s
The rate of supplying fresh feed to obtain the production rate is:
= 352.5/220.77 = 1.6
Answer:
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Explanation:
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