There are a couple of ways todetermine if a reaction is exothermic or endothermic. Endothermic meaning that heat is added to the reaction to make the reactants interact and exothermic meaning heat is released during the reaction between the two reactants.
In endothermic reactions you can find a triangle above the arrow.
Answer:
1s2 2s2 2p6 3s2 3p6 3d2 4s2
Explanation:
In order to retrieve the soluble salt from the solution, crystallization must be carried out.<span />
Answer:
O One system must have higher kinetic energy than the other system.
Explanation:
Higher KE of the system means hotter......the hotter will transfer heat to the cooler by conduction when they are in contact.
If you mean which of the two is denser, then you want the oceanic crust.
