<span>the answer d. </span>flammability
Answer:
Empirical SiCl3
Molecular Si2Cl6
Explanation:
Since it contains 79.1% chlorine, this means it contains (100 - 79.1)% silicon = 20.9% chlorine
To get the empirical formula, we firstly need to know the atomic masses of both chlorine and silicon. This is 35.5 and 28
We then divide the percentage abundances by the corresponding atomic masses.
Cl = 79.1/35.5 = 2.23
Si = 20.9/28 = 0.75
We then divide by the smallest, which is 0.75
Cl = 2.23/0.75 = 3
Si = 0.75/0.75 = 1
The empirical formula is thus SiCl3
To get the molecular formula:
(28+3(35.5))n = 269
134.5n = 269
n = 269/134.5 = 2
The molecular formula is Si2Cl6
Answer:
D
Explanation:
wavelength = speed of light/ frequency
= (3 x 10^8 m/s) / (3 x 10^12 Hz)
= 1 x 10^-4 m
Answer:
Polymerization.
Explanation:
Polymerization can be defined as a type of chemical reaction in which molecules that are relatively small in size chemically combine to form a huge chain of molecules.
Simply stated, polymerization refers to a chemical reaction where two or more smaller molecules react to produce larger molecules of the same network or repetitive structural units.
In polymerization, the relatively small molecules are generally referred to as monomers while the larger molecules they produce are known as polymers.
Polymerization is given by the chemical formula;
nA -----> A(n).
In this scenario, Luis uses a stencil to repeat the same design on each wall to form one long grapevine with a bunch of grapes every foot along its length.
Hence, the type of chemical reaction this best model is polymerization because it involved repeating the same design (monomers) to form a long grapevine with a bunch of grapes (polymers).
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