The temperature of a 250.0 g ball of iron increases from 19 to 32 degrees Celsius. How much heat did the iron ball gain?

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

Which of the following electromagnetic waves can create ions?