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.