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pH TEST PAPER: LITMUS - ACID & BASE<br />
Testing an Apple & a Bar of Soap<br />
The acidic apple turns blue litmus to red.  The basic bar of soap turns red litmus to blue.

Fphoto-36659405A-2PS.jpg

pH TEST PAPER: LITMUS - ACID & BASE
Testing an Apple & a Bar of Soap
The acidic apple turns blue litmus to red. The basic bar of soap turns red litmus to blue.

Copyright:© 1994 Paul Silverman - Fundamental Photographs

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