Chapter 17 study material

True or false A chemical reaction that results in a large amount of energy being released when a carbon compound combines with oxygen is considered a decomposition reaction.

False Combustion reaction

True or false. The number of molecules or moles of a substance involved in a chemical reaction is indicated by subscripts in the chemical equation for the reaction

False It is indicated by a coefficient.

True or false. In the equation involving 2KCIO->2KCLO+3O There are four molecules of product

False There are three molecules of product

True or false The reaction represented by the equation, 2NaHCO->2CO+H20+NaO, Is a combustion reaction

False it is a decomposition reaction

True or false. The equation, 4Fe+3O->2FeO, Represents a single displacement reaction

False it represents in addition reaction

True or false. Cutting vegetables into small pieces is an example of a chemical change.

False. Physical change

True or False. Cellular respiration, A process by which yeast converts sugar to carbon dioxide gas, represents a chemical change.

True

True or false. The mass, in grams, of one mole of a compound is known as Avogadro mass.

True

True or false. false. A solid insoluble, product formed in the reaction mixture may be referred to as a precipitate.

True

true or false. The total mass of the reactants equals the total mass of the products in a chemical reaction is an expression of the law of conservation of mass

True

True or false. The mass of the products equals the mass of the reactants in a chemical equation describing the reaction, the equation May be referred to as balanced.

True.