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Chemical Bonds and Equations Vocab

Across
a process in which one or more substances, the reactants, are converted to one or more different substances, the products
the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom
the number written after a symbol which tells the number of atoms of that element are in the compound
usually for ions; They appear on the top right of the symbol or formula
chemical reactions in which the reactants absorb heat energy from the surroundings to form products
the interatomic linkage that results from the sharing of an electron pair between two atoms
a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction
a material formed by chemically bonding two or more chemical elements
Down
a notation used by scientists to show the number and type of atoms present in a molecule
When energy is transferred to the surroundings
chemical compound that is composed of two elements
a number placed in front of a chemical symbol or formula; It shows how many atoms or molecules of the substance are involved in the reaction.
a substance that is formed as the result of a chemical reaction
a substance that delays, slows or prevents a chemical reaction
a substance that enters into and is altered in the course of a chemical reaction
formed between two ions with opposite charges; form when one atom gives up one or more electrons to another atom