Answer:
O is an element whilst H2O2 is a compound.
Explanation:
O is an element. You can find it on the periodic table. H2O2 is composed of both H and O. Thus, H2O2 is a compound.
First step is to convert the lb to kg as follows:
1 lb = 0.45 kg
Therefore, 150 lb = 150 x 0.45 = 67.5 kg
Avogadro's number = 6.02 x 10^23
Mass of Avogadro's number of people = 6.02 x 10^23 x 67.5
= 4.0635 x 10^25 kg
The key difference between a bomb calorimeter and a coffee cup calorimeter is high temperature.
<h3>
What is bomb calorimeter?</h3>
A bomb calorimeter is an apparatus that can measure heats of combustion, used in various applications such as calculating the calorific value of foods and fuels.
<h3>What is coffee cup calorimeter?</h3>
A coffee cup calorimeter is a cup used to provide insulation when materials are mixed inside of it.
<h3>Difference between the two calorimeter</h3>
- The coffee cup calorimeter can't be used for high-temperature reactions, either, because they would melt the cup.
- A bomb calorimeter is used to measure heat flows for gases and high-temperature reactions
Learn more about calorimeter here: brainly.com/question/1407669
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Answer:
103.70 nm
Explanation:
The minimum thickness of the film is given by 
where 
is the wavelength and n is the index of the refraction
We have n =1.35
Wavelength 
So the minimum thickness of the film 
