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Spa > Chemistry > Flashcards

Chemistry Flashcards

1
Q

What is the study of a substance that contains carbon?

A

Organic Chemistry.

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2
Q

What is the branch of chemistry dealing with compounds lacking carbon?

A

Inorganic Chemistry.

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3
Q

What are the 3 forms of matter

A

Liquid, gas, solid

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4
Q

What are the 5 elements that make up the structure of the hair skin and nails

A

Carbon, oxygen, hydrogen, nitrogen, sulfer

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5
Q

What are the structural units that make up the elements

A

Atoms

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6
Q

What is a chemical in its simplest form

A

Molecule

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7
Q

What is a compound

A

It forms when two or more atoms from different elements unite chemically

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8
Q

What is an example of a compound

A

H2O

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9
Q

What is a mixture

A

It’s a combination of two or more substances united physically

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10
Q

What is chemical change

A

When a chemical reaction takes place and a new substance is formed having different properties from the original

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11
Q

What is PH (potential hydrogen)

A

PH refers to the degree of acidity or alkalinity in a product or on a surface and is measured on a scale of 0-14

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12
Q

What is the PH measure for acids

A

Below 7. The lower the PH the greater degree for acidity

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13
Q

What is the pH measure for alkaline?

A

Anything with a PH above 7.0

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14
Q

What is the pH neutral range?

A

The neural range is considered to extend from 6.5- 7.5.

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15
Q

What is the acid mantle?

A

Sweat and sebum, which creates a barrier on the surface of the skin.

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16
Q

What is the purpose of the acid mantle on the skin?

A

The acid mantle protects against certain forms of bacteria.

17
Q

What is a solution?

A

Is a blended mixture of two or more solids, liquids, or gaseous substances.

18
Q

What is a solute

A

A solute is the dissolved substance in a solution.

19
Q

What is a solvent

A

Is a substance, usually liquid, that dissolves another substance to form a solution.

20
Q

What is the universal solvent

A

Water

21
Q

What does miscible mean?

A

Liquids are soluble, meaning they can be mixed with each other without separating, e.g.,
water and alcohol.

22
Q

What does immiscible mean?

A

Liquids are not capable of being mixed, e.g., water and oil.

23
Q

What is a suspension?

A

Is when solid particles are distributed throughout a liquid medium like a salad dressing
made up of oil and vinegar, where the oil is suspended in the vinegar.

24
Q

What is an emulsion?

A

Is a mixture of two or more immiscible substances united with the aid of a binder, or
emulsifier.

25
Q

What are surfactants?

A

Surfactants are substances that act as a bridge to allow oil and water to mix or emulsify.

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