Chemical Reaction Basics

chemical reaction

the process by which 1 or more substances are changed into 1 or more different substances

evidence of chemical reactions

evolution of energy as heat and/or light

unexpected color change

unexpected increase in volume

production of gas

formation of a precipitate

reactants

starting substance of a equation 

yield(s)

the arrow that shows the produces to product

products

the substances formed after the arrow

precipitate

a solid formed in a liquid

g

gas

l

liquid

aq

aqueous- solid dissolved in liquid (solution), homogeneous

s

solid

coefficients

the numbers placed in front of a compound

catalyst

speed up a reaction but do not participate

inhibitor

slow or stop a reaction

delta

represents heat

endothermic

requires heat to happen

exothermic

releases heat

diatomic elements

Br, I, N. Cl, H, O, F