Question

pH Scale A sequence of number from ___ to ___ that tells us how acidic or basic a substance is A substance that has a pH of 7 is ________________ Acids have a pH below 7 A lower pH number more ______________ substance Bases have a pH above 7 A higher pH number more __________ substance When the pH value changes by ________, the strength of the acid or base changes by ____________ times Example: an acid with a pH of ___________ is ten times more acidic than an acid with a pH of ____________ Example: a base with a pH of 10 is _________ times more ___________ than a base with a pH of 11 Dilute: a liquid that is less concentrated or weaker Acid-Base Indicators A way to ____________ whether a substance is an acid or base Indicators change _____________ when added to an acid or base pH strips, bromothymol blue, red cabbage For example, red cabbage, a natural indicator: Turns red/purple in an _____________ Turns blue/yellow in a ______________

Answer 1

Answer:

0-14

neutral

acidic nature (conc acid)

basic