Express the following quantity in scientific notation. The answer needs to have the correct number of significant figures. 21,30
2 answers:
Explanation:
In a scientific notation, numbers are written in decimal and are multiplied by 10 to the respective power.
A scientific notation helps to convert a number into decimal number.
For example, we can convert the number 21,300,000 mL into scientific notation as follows.
Scientific notation of 21,300,000 mL = mL
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Answer: >
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Explanation:
The order of boiling point depends upon the type of interactions present between the molecules.
Potassium fluoride (KF) is an ionic compound and the opposite ions are held together by strong electrostatic forces.
is a covalent compound and the molecules are held together by weak van der Waals' forces.
Formaldehyde is a polar compound due to presence of polar carbonyl group. Hence dipole-dipole force is present between formaldehyde molecules.
Thus the decreasing order of boiling point is:
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