Acid and Base Crossword Puzzle

QUESTIONS LIST: litmus : an indicator, ph scale : shows whether a substance is acidic, alkaline, or neutral, acid : a solution with a ph value less than 7, universal indicator : changes colour to show the ph of a solution, blue litmus : paper goes red on adding acid, red litmus : paper goes blue on adding alkali, base : a substance that neutralises an acid, indicator : changes colour to show whether a solution is acidic or alkaline, neutralisation : an acid cancels out a base or a base cancels out an acid, concentrated : has a large number of solute particles per unit volume, neutral : a solution that is neither alkaline nor acidic. its ph is 7, alkali : a soluble base, dilute : has a small number of solute particles per unit volume, corrosive : it can burn your skin or eyes.