Chemistry Flashcards
Acid alkali neutralization reactions
When an acid is mixed with alkaline in equal proportions to neutralize each other and form wAter and salt
Acid mantle
Protective Barrier lipids and secretion on the surface of the skin
Acids
Substance with pH below 7
Air
Gaseous mixture that makes up earths atmosphere
Alkalis
Know as bases compounds that reacts with acids to form salts
Anion
An ion with negative charge
Antioxidant
used to stabilize skin care products by preventing oxidation that would otherwise cause a product to turn rancid
Atoms
Smallest chemical components of an element that still retains the properties of that element
Cation
Ion with positive charge
Chemical changer
Change in chemical properties of a substance that is a result of the chemical reactions in which a new substance or substances are formed that have properties different from the original
Chemical compounds
Combinations of two or more atoms of different elements United chemically with fixed chemical compositions proportions and properties
Chemical properties
Characteristics that can only be determined by a chemical reaction and a chemical change in the identity of the substance
Chemistry
Composition structures and properties of matter
Combustion
Rapid oxidation of any substance by heat and light
Compound molecules
Also know as compounds two or more atoms of different elements
Element
Simplest form of matter cannot be broken down
Element molecules
Molecule containing two or more atoms of the same element in definite proportions
Emulsions
An unstable physical mixture of two or more immiscible substance that normally will not stay blended
Free radicals
Unstable molecules that cause inflammation disease or aging in body that cause wrinkles
Gases
Matter without a definite shape or size no fixed volume or shape
Hydrogen
Colorless odorless tasteless has lightest element known
Hydrogen peroxide
Chemical compounds of hydrogen and oxygen