You happen upon an antiques store and the clerk claims that he has a belt that was once worn by alexander the great, around 350 bc. you radiocarbon date it and find the percent of carbon to be 75% remaining. could the belt be genuine?

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical 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.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions