E = hc/(lamda)
The lamda symbol is wavelength, which this site does not have. I can represent it with an "x" instead.
Plancks constant, h = 6.626×10^-32 J·s
Speed of light, c = 3.00×10^8 m/s
The energy must be greater than or equal to 1×10^-18 J
1×10^-18 J ≤ (6.626×10^-32 J·s)*(3.0×10^8 m/s) / x
x ≤ (6.626×10^-32 J·s)*(3.0×10^8 m/s) / (1×10^-18 J)
x ≤ 1.99×10^-7 m or 199 nm
The wavelength of light must be greater than or equal to 199 nm
A monomer is a single unit. While a polymer is monomers linked together. So your answer would be B.) A collection of monomers combines to form a polymer.
Answer:
218 "cubic inch" = 0.05238 "rundlets"
Explanation:
From the conversion factors;
1.00 gal = 231 in3 = 3.78 L
But;
1.00 rundlet = 6.81 × 104 mL = 68.1 L (Converting to L by dividing by 1000)
231 in3 = 3.78 L
218 in3 = x
x = (218 * 3.78 ) / 231
x = 3.5673L
But 1 rudlet = 68.1 L
x rundlet = 3.5673L
x = (3.5673 * 1 ) / 68.1
x = 0.05238
I believe it would be 2, if CaCO3 is your molecule you will have two because of the number in front :)
The two structures at the right of the image are the greatest contributors to the resonance structure of malachite green.
<h3>What is resonance structure?</h3>
In some cases, one single structure is insufficient to explain the properties of a substance. Now, we know that in such cases we have to invoke more than one structure in order to efficiently discuss the chemistry of the compounds in question.
In this case, we can see from the image that the three structures of malachite green are all resonance structures. However, the two structures at the right hand side are the greatest contributors because they are more conjugated. Hence, the two structures at the right of the image are the greatest contributors to the resonance structure of malachite green.
Learn more about resonance structure:brainly.com/question/23287285
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