<u>Urea get decomposed during autoclaving, because it is volatile. It is filter </u><u>sterilized </u><u>and added aseptically to your </u><u>autoclave media.</u>
Can urea be autoclaved?
- Urea get decomposed during autoclaving, because it is volatile.
- It is filter sterilized and added aseptically to your autoclave media.
What is autoclave sterilization?
- In medical and laboratory settings, an autoclave is used to sterilise waste and lab supplies.
- Heat is used in the autoclave sterilisation process to eliminate bacteria and spores. Pressurized steam provides the heat.
What is filter sterilization?
- By using filtering, it is possible to exclude organisms based on their size. There are many different kinds of filtration methods, but membrane filtration is utilised to sterilise a system.
- Contaminants that are larger than the pore size are captured by membrane filtration on the membrane's surface.
Learn more about autoclave media.
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Mass of the steel is 
- density of a substance can be regarded as the ratio of the mass of that substance to that of it's volume.
- Mass of substance can be regarded as the quantitative measure of inertia, it can be simply explained as a fundamental property of all matter
<em> We can express this mathematically as ;</em>
Given :
Density of this steel= 8.1g/cm3

If we make Mass subject of formula,

Then let us substitute the values into the expression

Therefore, mass of the steel is 
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They have free electron(s) on their outermost energy levels making them good conductors.
They have metallic bonds in their chemical structure.
They readily lose the electrons on their outermost energy levels, to bond with non-metals in ionic bonds to form chemical compounds called "salts"
I think the answer you are looking for is D.
Hope this helps!!! :D