Chemistry & Chemical Safety

AKA Redox, is a chemical reaction in which oxidation & reduction take place at the same time.

There are ____ Elemets known to science today. ____ occur naturally on Earth.

Change in the chemical composition or makeup of a substance. Caused by chemical reactions.

pH stands for

Contain carbon (organic) and evaporates very easily (volatile)

All matter has a physical and chemical properties & exists in the form of a solid, liquid, or gas.

Are alkaline substances used to neutralize acids or raise the pH of many hair products.

Is the rapid oxidation of a substance accompanied by the production pf heat and light.

AKA compounds, are chemical combinations of 2 or more atoms of different elements in define (fixed) proportions.

Matter can be changed in two different way. Which are this two?

Every substance has unique properties that allow us to identify it.

Energy is matter.

__________ is a substance that releases oxygen.

Oxygen, aluminum, gold, sodium, pure (distilled) water, salt, aspirin. All this are examples of what?

Evaporates easily, such as isopropyl alcohol & ethyl alcohol. These chemicals are familiar to most people.

The toxicity of a substance is related to how it it used, & how much of it it is used.

Unstable physical mixture of 2 or more immiscible substances plus a special ingredient called and emulsifier.

Is a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound.

A mutagen

Simplest form of chemical matter and contains only one type of atom. Cannot be broken down into simpler substances.

An ion with A positive electrical charge is a ________.

Nucleus consist of _____ with a + charge & _____ with no charge.

Is an atom or molecule that carries an electrical charge.

When immiscible liquids are combine, they form ____, an unstable physical mixtures of undissolved particles in a liquid.

Characteristics determined only by chemical reactions & involve a chemical change in the substance.

Stable uniform mixture of 2 or more substances.

A surfactant molecule has two distinct parts _______ & _______.

Chemical combination of 2 or more atoms in define (fixed) proportions.

Substances that allow oil & water to mix, or emulsify.

Chemical reaction that requires the absorption of energy or heat from external source for the reaction to actually occur

Only products that contain water can have a pH.

Is the separation os an atom or molecule into positive and negative ions.

Is a substance that causes or is believed to cause cancer.

Dryness, dehydration, inflammation & bacteria can grow in the skin if

An ion with a negative electrical charge is an ________.

The head of the surfactant molecule is _______, capable of combining with or attracting water.

Colorless gas composed of hydrogen & nitrogen that has a pungent color. Used to raise the pH in hair products.

Chemical combination of matter in define (fixed) proportions. They have unique properties.

Molecule containing 2 or more atoms of the same element in define (fixed) proportions.

The more hydrogen ions there are in a substance the more __________ it will be.

Occur when an acid is mixed with an alkali in equal proportions, balancing the total pH & foaming water and salt.

Special type of oil used in hair conditioners, water-resistance lubricants for the skin, & nail polish dryers.

All matter known in the universe is NOT made up of Elemets that have their own distinct physical & chemical propertie.

The more hydroxide ions there are in a substance, the more alkaline it will be.

Oil droplets are emulsified in water.

All matter can be classified as either a _____________ or a _____________.

All liquids are either miscible or immiscible.

Water droplets are emulsified in oil.

science that deals with the composition, structures, properties of matter & how matter changes in different conditions.

Sweet, colorless, oily substance. Used as a solvent & as a moisturizer in skin and body creams.

All chemicals should be stored and disposed of in their original containers.

Characteristics that can be determined without chemical reaction & dont involve chemical change in substance.

Ingredient that brings 2 normally incompatible materials together and binds them into a uniform & fairly stable mixture.

The universal solvent is NOT water.

When certain chemicals reactions releases energy in the form or heat, it is called _________________.

Change in the form or physical properties of a substance, without a chemical reaction or the creation of a new substance

Liquids are mutually soluble, meaning they can be mixed together to form solutions.

Liquids are not capable of being mixed together to form a solution (like water and oil).

Substance that dissolves the solute and makes the solution.

Substance that is dissolved in a solution.

__________, meaning that they should not be mixed or even stored near each other.

Physical combination of matter in any proportion.

The tail of the surfactant molecule is _______, having an affinity for or an attraction to fat and oils.

Any substance that occupies space & has mass.

Air, solutions of salt water, hydrogen peroxide, most beauty products. All this are examples of what?

Basic unit of matter with a nucleus at the center surrounding by negative charged electrons that move around the nucleus