chemistry notes ch. 8
Chapter 8 vocabulary
Chemical equation- represents, with symbols and formulas, the identities and relative molecular or molar amounts of reactants and products.
Precipitate- a solid that is produced as a result of a chemical reaction in solution and that separates from the solution
Coefficient- is a small whole number that appears in front of a formula in chemical equations
Word equation- an equation in with the reactants and products in a chemical reaction are represented by words.
Formula- represents the reactants and products of a chemical reaction by their symbols or formulas.
Reversible reaction- a chemical reaction in which the products re-form the original
Synthesis reaction- a composition, reaction, 2 or more substances combine to form a new compound
Electrolysis- the decomposition of a substance by an electric current
Double displacement reactions- the ions of 2 compounds exchange places in an aqueous solution to form 2 compounds
Combustion reaction- a substance combines with oxygen, releasing a large amount of energy in the form of light and heat
Activity series- a list of elements organized according to the ease with which the elements undergo certain chemical reactions.
Chapter 8 objectives.
List 3 observations that suggest that a chemical reaction has taken place- odor, light, and heat
List 3 requirements for a correctly written chemical equation- represent known facts, contains the correct formulas for the reactants and products, and follows law of conservation of mass.
Write a word equation and a formula equation for a given chemical reaction-
Define and give general equations for synthesis, decomposition, single-displacement, and double displacement reactions- See definitions above
Classify a reaction as a synthesis, decomposition, single-displacement, or combustion reaction- A+X AX (synthesis reaction)
List 3 kinds of synthesis reactions and 6 kinds of decomposition reactions- Synthesis reactions: reactions of elements with
Chemical equation- represents, with symbols and formulas, the identities and relative molecular or molar amounts of reactants and products.
Precipitate- a solid that is produced as a result of a chemical reaction in solution and that separates from the solution
Coefficient- is a small whole number that appears in front of a formula in chemical equations
Word equation- an equation in with the reactants and products in a chemical reaction are represented by words.
Formula- represents the reactants and products of a chemical reaction by their symbols or formulas.
Reversible reaction- a chemical reaction in which the products re-form the original
Synthesis reaction- a composition, reaction, 2 or more substances combine to form a new compound
Electrolysis- the decomposition of a substance by an electric current
Double displacement reactions- the ions of 2 compounds exchange places in an aqueous solution to form 2 compounds
Combustion reaction- a substance combines with oxygen, releasing a large amount of energy in the form of light and heat
Activity series- a list of elements organized according to the ease with which the elements undergo certain chemical reactions.
Chapter 8 objectives.
List 3 observations that suggest that a chemical reaction has taken place- odor, light, and heat
List 3 requirements for a correctly written chemical equation- represent known facts, contains the correct formulas for the reactants and products, and follows law of conservation of mass.
Write a word equation and a formula equation for a given chemical reaction-
Define and give general equations for synthesis, decomposition, single-displacement, and double displacement reactions- See definitions above
Classify a reaction as a synthesis, decomposition, single-displacement, or combustion reaction- A+X AX (synthesis reaction)
List 3 kinds of synthesis reactions and 6 kinds of decomposition reactions- Synthesis reactions: reactions of elements with