Chemistry / Chemical Safety Flashcards
Knowledge of the basics of chemistry, elements, and properties. Understanding of chemical safety procedures (96 cards)
IMPORTANT ✍🏼
Chemistry is the study of CHEMICALS and CHEMICAL CHANGES which makes LIFE on EARTH possible. The daily functioning of our bodies is based on chemical reactions on our hair, skin, and nails
The effects of cosmetics and beauty products are based on…
how the body REACTS to CHEMICALS
Why do estheticians need to understand and have thorough knowledge of CHEMISTRY?
Estheticians need to understand and know how different chemicals affect the hair, skin, and nails. They need to be able to choose the CORRECT PRODUCTS for each client’s particular/SPECIFIC NEEDS
Why is CHEMICAL SAFETY important in ESTHETICS?
It is IMPORTANT to follow the procedures for handling chemicals in a salon or spa by reading the labels and following the manufacturer’s instructions to keep CLIENTS and THEMSELVES SAFE
Which term is the SCIENCE that deals with the COMPOSITION, STRUCTURES, and PROPERTIES of matter and how MATTER changes under different conditions?
Chemistry
Which term describes any SUBSTANCE that OCCUPIES SPACE and has MASS (weight)?
Matter
TRUE OR FALSE: MATTER has PHYSICAL PROPERTIES we can TOUCH, TASTE, SMELL, or SEE
TRUE
Is Energy Matter?
Energy is NOT MATTER because the visible light created by electrical sparks are FORMS of ENERGY which does NOT occupy SPACE or have MASS
Which term is the SIMPLEST form of CHEMICAL MATTER and contains only ONE type of ATOM? (Hint: CANNOT be broken down into a simpler substance without loss of identity)
Element
ALL matter in the universe is made up of ELEMENTS that have their own…
DISTINCT PHYSICAL and CHEMICAL PROPERTIES
Which term is the BASIC UNIT of MATTER, with a nucleus at the center? {surrounded by NEGATIVELY CHARGED ELECTRONS that move around the NUCLEUS?}
Atoms
1) ELECTRONS are…
2) PROTONS are…
3) NEUTRONS are…
1) NEGATIVELY CHARGED
2) subatomic particles with a POSITIVE CHARGE
3) subatomic particles with NO CHARGE
The # of ____ determines the ELEMENT
Protons
FUN FACT: Atoms CANNOT be DIVIDED into…
…SIMPLER SUBSTANCES by ordinary CHEMICAL means
Which term describes a CHEMICAL COMBINATION of 2 or MORE atoms in DEFINITE (fixed) proportions? (Hint: made by combining atoms)
Molecule
Which term describes a MOLECULE containing 2 or MORE atoms of the SAME ELEMENT in definite (FIXED) proportions? (Ex. O2)
Elemental Molecule
Which term describes CHEMICAL COMBINATIONS of 2 or MORE atoms of different ELEMENTS in DEFINITE (fixed) proportions? (Hint: also known as compounds)
Compound Molecules
What is an EXAMPLE of a COMPOUND MOLECULE?
Sodium Chloride (NaCl) - common table salt
What are the TWO ways MATTER can be CHANGED? Describe and list these 2 ways
1) Physical Changes: a change in the form (physical properties) of a substance, WITHOUT a CHEMICAL reaction (creation of a new substance)
2) Chemical Changes: a CHANGE in the chemical COMPOSITION or makeup of a substance. Has DIFFERENT CHEMICAL and PHYSICAL properties
EXAMPLES of PHYSICAL and CHEMICAL CHANGES
1) Physical: solid ice melting into water, water converting to steam, applying nail polish on nails forming a layer of film
2) Chemical:
Define the terms PHYSICAL properties and CHEMICAL properties
1) Physical Properties: characteristics that CAN be determined WITHOUT a CHEMICAL REACTION and do NOT involve a CHEMICAL CHANGE in the substance
2) Chemical Properties: characteristics that can be determined ONLY by a CHEMICAL REACTION and involve a CHEMICAL CHANGE in the substance
EXAMPLES of PHYSICAL and CHEMICAL PROPERTIES
1) Physical: color, solubility, odor, density, melting point, boiling point, hardness, and glossiness
2) Chemical: iron to rust, wood to burn, and hair to change color
Which term is a CHEMICAL COMBINATION of MATTER in DEFINITE (fixed) proportions? (Hint: has UNIQUE properties)
Pure Substance
Examples of PURE SUBSTANCES
Water and Salt