A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
A combination of chemical symbols and numbers to represent a substance
A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction. Only this can be changed when balancing equations.
A substance made up of atoms of two or more different elements joined by chemical bonds
A substance that cannot be separated or broken down into simpler substances by chemical means. An atom is its smallest unit.
Law of Conservation of Matter
Mass can be neither created nor destroyed in ordinary chemical and physical changes.
A measure of the amount of matter in an object
Anything that has mass and takes up space
Substances formed/produced/yielded in a chemical reaction
A substance or molecule that participates in a chemical reaction
A number written below and to the right of a chemical symbol This can never change when balancing chemical equations.
A measure of the size of a body or region.
The arrow in the middle of a chemical equation that separates reactants and products
A change that occurs when one or more substances change into entirely new substances with different properties.
A property of matter that describes a substance's ability to participate in chemical reactions.
The process by which one or more substances change to produce one or more different substances.
A chemical reaction that requires/absorbs heat.
A chemical reaction in which heat is released to the surroundings.
A solid that is produced as a result of a chemical reaction in solution.
Liquid not to be confused with aqueous solution.
Aqueous. The form when a substances is dissolved in water or someother specified solvent.