Balancing Chemical Equations

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balancing chemicals steps

• write correct formula for reactants and products

• draw line under arrow

• write in order the number of atoms on each side

• balance the atoms from hardest to simplest

• double check

diatomic elements

• molecule made of two atoms bonded

• elements that come in pairs

HOFBrINCL

• elements that come is pairs

• only used when element is alone

“gen” rule

halogens are diatomic

formation

two or more elements/compounds combine to form one product

synthesis

two or more compounds and elements form a product

decomposition

one reactant breaks down to form two or more products

single replacement

one or more elements replace other elements in a compound

double replacement

cation and anion of two reactants switch places to make a new compounds/products

combustion

hydrocarbon reacts with oxygen to produce carbon dioxide and water