A change in a substance that creates a new substance
A chemical change
These have no electrical charge
Neutrons
pH stands for what
Protein hydrogen
Healthy hair skin and nails for wear on my pH scale
4.5 to 5.5
Immiscible refers to what
Liquids not able to be mixed
When a solid turns to liquid or vice versa
Physical change
What has a positive electrical charge
Protons
An acid does what to the concentration of hydrogen ions when it is placed in water
Increases them
What is neutral on the pH scale
7
What are the six cosmetic classifications
Solutions, suspensions, emulsions, ointments, soaps, powders
Anything that occupies space and has weight
Matter
When unstable Adams combined chemically by sharing electrons they form what
Molecules
An alkali does what to the concentration of a hydrogen ions when placed in water
Decreases them
What tools can be used to measure pH
pH meter, litmus paper,
This makes up approximately 60% of the human body and covers 75% of the Earth's surface
Water
All matter that is now living or was alive at one time
Organic chemistry
The bonding of protein chains to other protein chains makes what
Human hair
Potential hydrogen starts with what
Water
Only substances containing this or can be dissolved in this can be acidic or alkaline in value
Water
What kind of water contains certain salts of calcium, magnesium and other metals that prevent the shampoo from lathering
Hard water
Elements are made up of this
Adams
Which bonds in human hair can be easily broken by heat or water
Hydrogen bonds
This ranges from 1 to 14
pH scale
Alkalize and acids do what to each other if they are combined
They neutralize each other
This water contains very small amounts of minerals and is preferred for shampooing as it lathers more freely
Soft water