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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for They turn litmus red:

ACID: This turns litmus red
ACIDS: They turn litmus red
BASES: They turn red litmus paper blue
ACID: It turns litmus red
ALKALI: It turns red litmus paper blue
ACID: Substance that turns litmus paper red
ACIDS: They turn litmus paper red
ACID: It turns litmus paper red
ACIDS: They turn blue litmus paper red