Who was the first to state the concept of an atom? neils bohr john dalton ernest rutherford democritus

Democritus

Explanation:

In early 15th century, Democritus and Leucippus proposed that matter is indivisible building blocks. Greeks called these particles as an atomos which means that indivisible.

Later it is modified as an atom.

c8h10 is your answerr

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.