Acid and Base Crossword Puzzle
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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.
