What type of reaction is illustrated? 2FeBr3 + 3Na2S → Fe2S3 + 6NaBr

A. synthesis

B. decomposition

C. double replacement

The reaction q+r2=r2q is found to be first order in r2 and

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

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