Acids and Alkalis Recap Crossword Puzzle
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QUESTIONS LIST:
- acid : is a solution with a ph value less than 7.
- alkali : a soluble base.
- base : a substance that neutralises an acid.
- concentrated : a solution is c _ if it has a large number of solute particles per unit volume (litre or cubic metre).
- corrosive : a substance is c _ if it can burn your skin or eyes.
- dilute : a solution is d _ if it has a small number of solute particles per unit volume (litre or cubic metre).
- indicator : a substance that changes colour to show whether a solution is acidic or alkaline.
- neutral : a solution that is neither alkaline nor acidic. its ph is 7.
- neutralisation : an acid cancels out a base or a base cancels out an acid.
- ph scale : shows whether a substance is acidic, alkaline, or neutral.
- salt : a compound made of a metal and non-metal
- universal indicator : an indicator that changes colour to show the ph of a solution.