Which of these is an acid? 1) naoh 2) water 3) vinegar 4) lye giving brainlest to the one who answers first and correctly!

3) Vinegar

Step-by-step explanation:

Vinegar is a dilute solution of acetic acid. It has a sour taste and turns blue litmus red.

1)  NaOH and 3) lye are bases. They both have a slippery feel and turn red litmus blue.

2) Water is neutral. It is neither an acid nor a base.

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

c is the answer because when something is left after something evaporates that shows the chemical change.