Lesson 5 Chemistry Esthetics

All _________________ in the universe is made up from one or more different elements.

This is the subtraction of oxygen or the addition of hydrogen:

This does not have a definite size or a definite shape

These are used to stabilize skin care products by preventing oxidation that would cause product to turn rancid/decompose

What is an anion with one oxygen and one hydrogen atom?

Liquids are mutually soluble

Any substance that dissolves the solute to form a solution

Any substance that is dissolved by a solvent to form a solution

This has a positive electrical charge:

What are characteristics that can be determined without a chemical reaction - do not cause change in identity

Characteristics that can only be determined w/a chemical reaction & that cause a chemical change in the identity

An atom or molecule that carries an electrical charge:

A chemical compound of hydrogen and oxygen - a colorless liquid with a characteristic odor and slightly acid taste

This is formed by joining two or more atoms chemically:

Air, salt water and hydrogen peroxide are examples of:

Type of change in the form or physical properties of a substance without the formation of a new substance

This scale measures the acidity or alkalinity of a substance

This occurs when an acid is mixed with an alkali in equal proportions to neutralize each other & form water & a salt

Mixtures of two or more immiscible substances united with the aid of an emulsifier:

Particles from which all matter is composed. This is the smallest particle of an element that still retains properties.

The substance that releases oxygen

This has a negative electrical charge

Droplets of oil are dispersed in water in this type of emulsion.

Gasoline, plastics, synthetic fabrics, pesticides & fertilizers are all:

This has a neutral electrical charge:

These are known as bases: they have a pH above 7.0, taste bitter, and turn litmus paper from red to blue:

Unstable mixtures of two or more immiscible substances:

These are free radical scavengers that stop the oxidation reaction from continuing

An ion with a negative electrical charge

These are physical mixtures of 2 or more different substances. Depends on size of particles & solubility of components

This has a definite size and a definite shape

The three different physical forms of matter; solid, liquid & gas are called:

The study of substances that contain the element carbon:

A combination of two or more substances that are united physically, in any proportion with combined properties

The oil loving end of a surfactant molecule

This is a colorless, gaseous element. It makes up 4/5 of the atmosphere

This type of molecule is a chemical combination of two or more atoms of different elements that are united chemically

What type of compounds are flammable and will burn?

Droplets of water are dispersed in oil in this type of emulsion:

The most abundant of all substances

Substances that have a pH below 7.0, taste sour & turn litmus paper from blue to red:

An ion with a positive electrical charge

A chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized

These are used to emulsify oil and water to create an emulsion. This is a surface active agent.

What is a combination of two or more atoms of different elements united chemically with a fixed chemical composition?

This type of molecule contains two or more atoms of the same element that are united chemically:

Antioxidants prevent oxidation by neutralizing:

This type of scale means a change of one whole number represents a tenfold change in pH:

This has a definite size but not a definite shape

A colorless, odorless, tasteless gas and is the lightest element known.

The number of protons in an atom ___________ the number of electrons.

Combustion is the rapid oxidation of a substance, accompanied by the production of :

The most abundant element found on earth. It is a colorless, odorless, and tasteless gas.

Chemical reaction - the addition of oxygen or the loss of hydrogen

What is the simplest form of chemical matter?

This is odorless, colorless and generally consists of 1 part oxygen and 4 parts nitrogen by volume

Any substance that occupies space and has mass:

Most skin care products are emulsions of water in oil.

This causes an atom or a molecule to split in two, creating a pair of ions w/ opposite electrical charges

Branch of chemistry dealing w/compounds that do not contain carbon, but may contain hydrogen.

Only products that contain ________________ can have a pH.

Uniform mixtures of 2 or more mutually miscible substances

The pH represents the quantity of ________________ ions.

Iron turning into rust and wood turning into ash are examples of a

The water loving end of a surfactant molecule

What is science that deals w/composition, structure & properties of matter & how matter changes ?