ACID & ALKALI Flashcards
who discovered acids?
Robert Boyle.
what is an acid?
An acid is a sour tasting chemical that turns blue litmus red.
what is an alkali?
An alkali is a bitter tasting chemical that turns red litmus blue.
what is a weak alkali?
Weak alkalis are found in soaps and other cleaning materials.
what is a weak acid?
Weak acids are found in everyday items such as food, drinks and skin care products.
what is a strong alkali?
Some alkalis, like those in the laboratories, or in cleaning materials such as bleach, are too dangerous to touch
what is a strong acid?
Some acids, like those found in laboratories or a car battery, are too dangerous to taste or touch.
what effect do alkalis have on our skin?
Sometimes eczema is caused by an allergic reaction to the soap or other cleaning materials.
what is a neutral substance?
Neutral substances are neither acidic or alkaline
Examples of neutral substances:
Pure water
Alcohol
Salt water and blood may actually be slightly acidic or alkaline, but are all very close to neutral.
