Balance the following chemical equations, place a number in each slot. Then identify the reaction as to type (synthesis, decomposition, or combustion). AI2O3 > AI + O2 the reaction is a reaction.

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

A) equal lines b) parallel lines c) perpendicular lines d) none of the above

Agas engine that operates on a brayton cycle has an efficiency of 0.23. on a cold day, the temperature of the air drawn into the engine is 267 k.part awhat is the temperature of the air exhausted from the engine?