What does OIL RIG stand for
Oxidation Is Loss, Reduction Is Gain
The 3 states of matter?
→ Solid, liquid, gas
pH range of an acid?
→ Below 7
Exothermic reaction?
→ Releases heat
Main concern in case study #4?
→ Unsafe chemical mixing
What does “oxidation” mean
Loss of electrons
What is an element?
→ Substance of one atom type
pH of pure water? → 7
→ 7
Endothermic reaction?
→ Absorbs heat
How chemistry improves safety?
→ Understanding reactions on skin
Example of reduction?
Gaining electrons; e.g. Cu²⁺ → Cu
A physical change?
→ Alters form without changing composition
What pH is alkaline?
→ Above 7
An exothermic beauty service?
→ Waxing (heat release when resin cools)
What was the client’s mistake?
→ Mixing incompatible products
How does OIL RIG help with redox reactions?
Identifies what’s oxidized/reduced
Chemical change?
→ Creates a new substance
pH stands for?
→ Potential of Hydrogen
An endothermic beauty service?
→ Chemical peel or enzyme mask
How could it have been avoided?
→ Patch test & following instructions
Why are redox reactions important?
→ Involved in bleaching, skin reactions, metabolism
Example of a chemical property?
Reactivity, flammability, or pH
Why estheticians care about pH?
→ To ensure skin safety and effectiveness
Why some skincare products heat/cool?
→ Enhance absorption, soothe skin, or stimulate cells
What did the esthetician do right?
→ Identified burn and neutralized properly