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Chemical Reactions and Formula Vocabulary

Across
Chemical formulas and symbols written to represent a reaction
A shorthand notation that uses chemical symbols and numbers as subscripts to represent the type and number of atoms that are present in the smallest unit of a substance
A chemical reaction in which heat is absorbed
rows in a periodic table that classify the elements by the number of electron shells
law stating that the mass of all reactants must equal the mass of all products; matter is neither created nor destroyed
Elements that are typically not shiny, not malleable, and poor conductors of heat and electricity; usually gases or brittle solids
Elements that have properties of both metals and nonmetals; sometimes referred to as semiconductors
columns on a periodic table that arrange the elements by the number of electrons that are in the outermost shell
Down
symbolic representation of a chemical reaction in which both sides of the equation contain equal numbers of atoms of each element
An insoluble solid formed from a chemical reaction
process by which one or more substances change to produce one or more different substances
A chemical reaction in which heat is released
substance that takes part in and undergoes change during a chemical reaction
A number written below and to the right of a chemical symbol that shows the number of a specific type of atom present
A one- or two-letter notation used to represent an atom of a particular element
A substance produced during a chemical reaction
A number placed in front of a chemical symbol or formula that represents the number of molecules
The number of protons in the nucleus of one atom and identifies the element
Elements that are typically solid, shiny, malleable, and good conductors of heat and electricity; includes most elements