Acids and alkalis · Puzzle
Crossword
7 clues from this topic’s key words.
Tap a square, then tap the letters under the grid. Tap the square again to change between across and down.
1 2 3 4 5 6 7
Across 2 Gas made when a metal reacts with an acid (8)6 Has a pH above 7 (6)7 pH 7, neither acid nor alkali (7)Down 1 Changes colour in acids and alkalis (9)3 Solid salt left after evaporation (8)4 Any substance that neutralises an acid (4)5 Red in acid, blue in alkali (6)Answers 1 down : Changes colour in acids and alkalis. Indicator 2 across : Gas made when a metal reacts with an acid. Hydrogen 3 down : Solid salt left after evaporation. Crystals 4 down : Any substance that neutralises an acid. Base 5 down : Red in acid, blue in alkali. Litmus 6 across : Has a pH above 7. Alkali 7 across : pH 7, neither acid nor alkali. Neutral The worksheet The same crossword as a worksheet to print.
The Acids and alkalis puzzle booklet has the topic’s puzzles and every lesson’s, with their answers. This worksheet is page 2, and its answers are on page 3.
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