HSBC Chemistry

Refers to the ability of the hair to absorb moisture

The peptide bond is the backbone of all protein molecules

With an element, atoms are the same

The scientific study of matter and the physical and chemical changes of matter

The valence shell is the outer most shell

Mixtures of organic substances and a medical agent, usually found in semi solid form

There are 6 cosmetic classifications

Mixtures of molecules, that do not separate with standing still

Which PH measurements work best

Alkali tends to taste sour

Amino acids that create protein are linked together end to end

An atom is the largest complete unit of an element

Bonding of protein chains with other protein chains makes human hair

Formed when 2 or more immiscible substances are united with the help of a binder or gum like substances

Ability to stretch hair

Matter with weight and no volume and shape

Ph of 0-6

____ acids create polypeptide protein chains

Equal mixtures of organic and inorganic substances that do not dissolve in water and have been sifted and mixed

Decreases the concentration of hydrogen icons when placed in water

2 or more atoms joined together by a chemical bond

Have no electrical charge- neutral

Have a positive electrical charge

5 elements of hair are carbon, oxygen, hydrogen, nitrogen and sulfur

Bonds broken by heat And water

Hydrogen and salt bonds are broken during the chemical change

Some atoms by their very structure are not missing any electrons in their outer shell they are called stable atoms

Liquid is matter definite weight and volume but no shape

Disulfide bonds are broken during a physical service

Red litmus turns blue in an alkali

Matter is anything that occupies space and has weight

A change in the physical characteristics of a substance without creating a new substance

Blue litmus turns red in acid

Have an negative charge

PH balanced refers to a product with what PH

Inorganic chemistry studies all matter that is alive

A chemical change is a substance that creates a new substance with chemical characteristics from those in the original

Acids tend to taste sour

Hair is a form of protein called keratin

With a compound the atoms are the same

Hair is made up of ___ keratin and 3% trace minerals

PH stands for potiental hydrogen

PH of 7 is

Medicated rinses are designed with ingredients that control minor dandruff and scalp conditions

A substance that increases the concentration of hydrogen ions when placed in water

Hydrogen has the simplest atomic structure

Disulfide bond is the most important to your salon work

Surfactants are used to remove oil out of the hair

4 side bonds are hydrogen, salt, disulfide and van der Waals forces

Basic substances that cannot be broken down into simpler substances

The bond broken by a chemicals

Compound consisting of carbon, oxygen, hydrogen and nitrogen

Mixture of fats and oils converted to fatty acids by Heat then purified

a measurement that indicates the acidity or alkalinity of water based substances

Matter with definite weight, volume and shape

PH of 8-14

All matter that is now living or was alive at one point

2 or molecules that separate when left standing