Protons and neutrons exist within the neucleus, while electrons do not.
The mechanical property of steel that characterizes its resistance to permanent deformation is ductility.
Am alloy is a substance prepared by adding one or more elements to a base or parent metal to obtain desirable properties.
Steel is an alloy of Iron and carbon in the composition of 99.8% and 0.2% respectively.
The mechanical or physical properties of steel include:
- It is more malleable and ductile than iron.
- It is harder and stronger.
- it can withstand great stress and strain.
The ductility of a metal like steel is the ability of a metal to change its shape without breaking, that is, resistance to permanent deformation.
Therefore, the mechanical property of steel that characterizes its resistance to permanent deformation is ductility.
Learn more here:
brainly.com/question/21706983
Answer:
Mole percent of water in azeotrope is 69%
Explanation:
Clearly, the azeotrope consists of water and perchloric acid.
So, 72% perchloric acid by mass means 100 g of azeotrope contains 72 g of perchloric acid and 28 g of water.
Molar mass of water = 18.02 g/mol and molar mass of perchloric acid = 100.46 g/mol
So, 72 g of perchloric acid = 
of perchloric acid = 0.72 mol of perchloric acid
Also, 28 g of water = 
of water = 1.6 mol of water
Hence total number of mol in azeotrope = (1.6+0.72) mol = 2.32 mol of azeotrope
So, mole percent of water in azeotrope = [(moles of water)/(total no of moles)]
%
Mole percent of water = 
% = 69%
In gases and liquids, heat is usually transferred by convection, in which the motion of the gas or liquid itself carries heat from one place to another. ... If you boil water in a kettle, the heat is transferred through convection from the fire to the pot.
MARK BRAINIST IF THIS HELPED!!
It is
<span>b. strong acid vs. weak base.</span>
