Answer:
Because X-rays have wavelengths similar to the size of atoms
Answer:
6 mass
Explanation:
because the si unit of gram is mass
An Exothermic reaction releases energy into the surroundings and so the products have more potential energy then the reactants. The enthalpy change is a negative value. Whereas, an endothermic reaction involves the absorption of energy into the system and so the reactants have more potential energy than the products. The enthalpy change is a positive value. This is clearly represented in energy profile diagrams.