What is the mass in grams of 3.7 x 1019 particles of iron(III) carbonate?

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Helium decays to form lithium. which equation correctly describes this decay?

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.