Given the balanced equation representing a reaction: h2 → h h what occurs during this reaction? 1. energy is absorbed as bonds are formed. 2. energy is absorbed as bonds are broken. 3. energy is released as bonds are formed. 4. energy is released as bonds are broken.

Iknow #2 is d. i just need to know why

What will most likely happen when two bromine atoms bond together?

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign