careful analysis of 3d printing part indicates that it is made up of layers with a distinct filament outline visible on eaach layer. is the mateira a thermoset or a thermoplastic

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

Light waves can move through , but they travel fastest when they move through a(n) .

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.