Chemical Reactions Flashcards
Chemical Equation
gives the chemical formulas of the REACTANTS on the left of the arrow and the PRODUCTS on the right.
What do symbols in chemical equations show?
- The STATE of the reactants.
- The STATE of the products.
- The reaction CONDITIONS.
In a balanced equation…
Atoms are not gained or lost.
What numbers are used in front of formulas?
coefficients
Coefficients
numbers used in front of formulas
Types of Reactions
Combination/Synthesis
Deomposition
Single Replacement
Double Replacement
Combination/Synthesis Reaction
two or more elements combine to form one product
Decomposition Reaction
one substance splits into two or more simpler substances
Oxide ->
metal + oxygen
metal + oxygen –>
oxide
chlorate –>
chloride + oxygen
chloride + oxygen –>
chlorate
carbonate –>
oxide + carbon dioxide
Oxide + carbon dioxide –>
carbonate
hydroxide –>
oxide + water
oxide + water –>
hydroxide
Single Replacement
one element takes the place of a different element in a reacting compound
When does single replacement happen?
when the element replacing is more active and in the same column
