Materials
Is the substance's mass per unit of volume
What is density?
Is a single kind of matter that cannot be separated into other kinds of matter by any physical means
What is a pure substance?
It organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic number
What is the periodic table?
The smallest particle of a substance has all of the physical and chemical properties of that substance. Are made up of one or more atoms.
What is a molecule?
A substance or matter in a state in which it will expand freely to fill the whole of a container
What is gas?
It contains two or more substances that are not chemically combined
What is a mixture?
A simple substance that cannot be broken down into smaller parts or changed into another substance
What is an element?
A substance made from two or more different elements that have been chemically joined
What is a chemical compound?
The temperature at which it changes state from solid to liquid
What is the melting point?
Is a mixture in which one substance consisting of microscopically dispersed insoluble particles is suspended throughout another substance
What is a colloid?
Fe
What is the chemical symbol of Iron?
NaCl
What is table salt's chemical formula?
Conversion of a substance from the solid to the gaseous state without its becoming liquid
What is sublimation?
Is the process of separation of liquid from solid and other immiscible (non-mixing) liquids, by removing the liquid layer at the top from the layer of solid or liquid below.
What is decantation?
Is an element that readily forms positive ions (cations) and has metallic bonds
What is metal?
Is a process that occurs when two or more molecules interact to form a new product(s).
What is a chemical reaction?
The ability of things to get disintegrated (decomposed) by the action of micro-organisms such as bacteria or fungi biological
What is biodegradable?
Is a method by which a mixture is separated by distributing its components between two phases
What is chromatography?
The element used to manufacture electricity wires
What is Copper?
A chemical reaction involves the release of energy in the form of heat or light.
What is exothermic?