How many grams of iron are needed to react with 3.00 g of sulfur?

Which three statements represent the benefits of performing experiments using computer simulations?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

How does a sample of helium at 15 degree celsius compare to a sample of helium at 215 k? a) the helium at 15 degrees celsius has a higher average kinetic energy that the sample at 215 k. b) the helium at 15 degrees celsius has lower nuclear energy that the sample at 215 k. c) the helium at 15 degrees celsius has slower- moving atoms that the sample at 215 k. d) the helium at 15 degrees celsius has smaller atoms than the sample at 215 k.