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What is the pH of an acid?
1-6

What is the pH of an alkali or base?
8-14

What pH is neutral?
7

What does a pH of 1-3 indicate
a strong acid

What type of chemical can you use to tell if something is acid or alkali?
Indicator.

Acid + alkali (or base) →
salt + water
called a neutralization reaction

Examples of alkali or bases
soluble base
Sodium Hydroxide, Potassium Hydroxide,
Calcium Hydroxide & Ammonium Hydroxide.
Salt formed from Hydrochloric acid and Sodium Hydroxide
HCl + NaOH
Sodium chloride (NaCl)

Acidic ion
H⁺
Alkaline ion
OH⁻