Flashcards in Basics of Chemistry Deck (40)
Science that deals with composition, structure and properties of matter and how they change under different conditions is the definition of:
The two branches of chemistry are:
Organic and Inorganic.
Organic chemistry studies substances that contain:
Metals, minerals, pure water and clean air do not burn and are considered:
Any substance that occupies space is the definition of:
What is an element?
The simplest form of chemical matter.
Particles from which all matter is composed is the definition of:
Describe a molecule:
Formed by joining two or more atoms chemically.
Describe an elemental molecule:
Containing two or more atoms of the same element that are united chemically.
Describe a compound molecule:
Two or more atoms of different elements that are united chemically.
Characteristics that can be determined without a chemical reaction and that do not cause a chemical change in the identity of the substance is known as:
Characteristics that can be determined only with a chemical reaction and cause a chemical change in the identity of the substance.
A change in the form or physical properties of a substance without the formation of a new substance is called:
Change in the chemical composition of a substance is known as:
A colorless, odorless, tasteless GAS and is the lightest element known. What is it?
The most abundant element found on earth and is an odorless, and tasteless GAS.
A colorless, gaseous agent. It is about 4/5 of the air in our atmosphere and is found chiefly in the form of ammonia and nitrates.
The gaseous mixture that makes up the earths atmosphere, its odorless, colorless. It contains a small amount of organic matter which is essential to plant and animal life.
It comprises about 75 percent of earths surface and about 65 percent of the human body:
What does pH stand for?
A neutral pH is:
A chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized is called:
Rapid oxidization of a substance, accompanied by the production of heat and light is called:
These are used to stabilize skincare products by preventing oxidation that would cause a product to turn rancid:
"Super" oxidizers that cause an oxidation reaction and produce a new free radical in the process are called:
A uniform mixture of ___ or more mutually miscible substances is called a solution.
Any substance that IS DISSOLVED by a solvent to form a solution is:
Any substance THAT DISSOLVES the solute to form a solution is:
What is the difference between miscible and immiscible?
Miscible means mixable, immiscible means non-mixable.