CHEMICAL EQUATIONS Flashcards
a written statement that uses symbols and formulas instead of words to describe the changes that occur in a chemical reaction
Chemical equation
substances that combine in the reaction
Reactants
are substances that are formed by the reaction
Products
found between reactants, means “reacts”
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separates each reactant and each product, it means “react with combines with”
+
placed after the formula of a product that is a gas
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placed after the formula of a product that is an insoluble solid
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indicates the physical state of the substance
Physical state
indicates the substance is a gas
(g)
indicates the substance is liquid
(l)
indicates the substance is solid
(s)
means the substance in in aqueous
(ag)
numbers placed in front of the formulas to balance the equation
Coefficients
words or symbols placed above or below the arrow to indicate conditions used to make the reaction occur
Conditions
triangle above arrow
Heat is added