Random 1
How many elements known to science today occur naturally on Earth?
98
While working on lotions and creams that, when mixed with activators, warm the bottles in which they are contained is considered what kind of reaction?
An exothermic reaction
How many elements are known to science today?
118
What is the simplest form of chemical matter?
An element
What does SDS stand for?
Safety Data Sheet
For what purpose would acids most likely be used?
To exfoliate the skin.
What would drops of lavender extract be considered when mixed into water?
They are solutes.
What do all acids owe their chemical reactivity to?
The hydrogen ion
The pH scale is used to measure what?
Acidity (acids/acidic) and Alkalinity (alkaline/base/basic)
What is matter?
Any substance that occupies space and has weight.
What is the result of ice melting? (hint: what kind of reaction?)
An endothermic reaction
What is exposed metal rusting be an example of?
A chemical change
What were the first surfactants?
Soaps
If products or chemicals are incompatible, how should you store them?
Store them away from each other.
When immiscible liquids are combined, they form what?
Suspensions
What does a reducing agent do?
Adds hydrogen to a chemical compound.
Why is it important to have all products registered with the EPA?
Because you'll be made aware of any hazards associated with the products.
What is true of solutions?
They are stable mixtures.
What accompanies the rapid oxidation of a substance during combustion?
The production of heat and light.
Why is understanding pH important for the beauty and wellness professional?
Because it affects the hair, skin, and nails.
What is true today about the regulations of the disposal of many of the chemicals used in salons, spas, and babershops?
Most states and counties do not have regulations in place.
They should use products that are slightly alkaline.
What is common table salt an example of?
A compound molecule
Why must you have an SDS available for every chemical used?
Because it is a requirement of OSHA.
In the uniform order of the SDS, which of the following comes immediately after the first category of "Identification"?
Hazard Identification