Question

With different words.. try by yourself.
$\sf\fbox{♪ what \: is \: elements?} \\ \ \textless \ br /\ \textgreater \ \sf\fbox{♪ What is pH?}$
$\sf\red{★ Please \: don't \: copied..}$
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Answer 1

Answer:

Answer of elements :-

An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one electron.

Answer of PH :-

n chemistry, pH (/piːˈeɪtʃ/), historically denoting "potential of hydrogen" (or "power of hydrogen") is a scale used to specify the acidity or basicity of an aqueous solution. ... More precisely, pH is the negative of the base 10 logarithm of the activity of the H+ ion.

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Answer 2

Answer:

$\:\ \sf\fbox{what \: is \: element?}$

an element is a substance consisting only of atoms that all have the same numbers of protons in their nuclei.

$\ \sf\fbox{What is pH?}$

pH is used to measure wether something is acidic or basic in nature .

or

pH is used to measure the acidicity or basicity of a substance.