ACID & ALKALI Flashcards

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1
Q

who discovered acids?

A

Robert Boyle.

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2
Q

what is an acid?

A

An acid is a sour tasting chemical that turns blue litmus red.

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3
Q

what is an alkali?

A

An alkali is a bitter tasting chemical that turns red litmus blue.

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4
Q

what is a weak alkali?

A

Weak alkalis are found in soaps and other cleaning materials.

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5
Q

what is a weak acid?

A

Weak acids are found in everyday items such as food, drinks and skin care products.

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6
Q

what is a strong alkali?

A

Some alkalis, like those in the laboratories, or in cleaning materials such as bleach, are too dangerous to touch

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7
Q

what is a strong acid?

A

Some acids, like those found in laboratories or a car battery, are too dangerous to taste or touch.

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8
Q

what effect do alkalis have on our skin?

A

Sometimes eczema is caused by an allergic reaction to the soap or other cleaning materials.

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9
Q

what is a neutral substance?

A

Neutral substances are neither acidic or alkaline

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10
Q

Examples of neutral substances:

A

Pure water
Alcohol
Salt water and blood may actually be slightly acidic or alkaline, but are all very close to neutral.

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