Chemistry Crossword Puzzle

the material or protoplasm within a living cell, excluding the nucleus.
The ____ states the system mass remains constant.
The substance will remain the same through a __________change.
A subatomic particle with a positive charge.
Compounds that contain only carbon and hydrogen.
a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red.
Method by which hydrophobic (water-repelling) particles of an ore are separated from hydrophilic (water-attracting) particles of a metallurgical pretreatment process.
When two or more atoms join together, they form _______.
An element below and to the left of the stepwise division (metalloids) in the upper right corner of the periodic table.
A subatomic particle with a negative charge
One___of oxygen is not stable, two are required for stability.
A measure of the intensity of heat, i.e. the hotness or coldness of a sample or object
An atom or a group of atoms that carries an electric charge.
Combination of symbols that indicates the chemical composition of a substance.
Noble gases reside in group 18 on the ___of elements.
The substance that reduces another substance and is oxidized.
a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.
A___ is a combination of two or more atoms held together by covalent bonds.
Elements with properties intermediate between the properties of metals and non-metals.
A series of cloud-like energy levels called___.
A combination of pure substances.
In a ___, a cloudy mixture is formed in which tiny particles of one substances are held within another substance.