G6 - Acids Vocabulary Flashcards

Front

Acid

Back

A substance that has a sour taste and a pH lower than 7.

Front

Alkali

Back

A substance that has a bitter taste, feels soapy, and has a pH above 7.

Front

Neutral

Back

A substance that is neither acidic nor alkaline, with a pH of 7.

Front

pH Scale

Back

A scale from 0 to 14 that shows how acidic or alkaline a substance is.

Front

Indicator

Back

A substance that changes color to show if something is an acid or alkali.

Front

Litmus Paper

Back

A special type of paper used as an indicator to test acids and alkalis.

Front

Red Litmus Paper

Back

Turns blue in an alkali and stays red in an acid.

Front

Blue Litmus Paper

Back

Turns red in an acid and stays blue in an alkali.

Front

Neutralisation

Back

A reaction where an acid and an alkali mix to make a neutral substance (pH 7).

Front

Hydrochloric Acid

Back

A strong acid found in the stomach that helps with digestion.