How many iron atoms are in 3 moles of iron?

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Chemistry worksheet - i am not sure what they are asking for exactly?

Northern was a learned a fairly cold climate caused by see one from the atlantic ocean, but se was real and tends to be much warmer, sonia look good causes difference. a. cool wins cannot blow across a leg into the south mountains, b. prevent cold air from blowing over into south sea, c.the south is at much higher elevation, so it is closer to the sun, d. suppose early and has a sperience a drastic climate change in the past few years.