Polymerization because monomers are joined to form a larger molecule. These units are linked together with different types of bonds depending on the class of the molecule such as carbohydrates, lipids, or proteins.
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Answer:
D
Explanation:
Density is d=m/v
We have mass, it's 540
The volume is length*width*height
So it's 5*6*4=120 cm^3
540/120=4.5 g/cm^3
It's cm^3 because volume is in cubic centimeters.
Answer:
52.08grams
Explanation:
Heat of fusion is the energy needed to transform solid water into liquid water. Hess's Law.
The temperature change Liquid water to Solid Ice. 20 degrees C --> 0 degrees C. is 20 degree C.
The heat needed for this is = 4.184 J/(g*C) * (36 grams of water) * 20 degrees C = 3012 joules of energy.
Liquid water to solid water.
Heat of fusion of water is 335j/g = 6.02kJ/mol
The heat needed for this is 6.02 kJ/mol * 2 moles of water = 12.04 kJ = 12040 joules of energy.
Adding the two energies, we have a total energy iof 15052 joules.
15052 joules = H(vap of CCl2F2) * grams of CCl2F2 needed = 289 J/g * x grams 15052 / 289 = 52.08 grams needed.