Answer:
There arr 1.5*1024 molecules in 2.40 moles of H2O.
Its would be fluorine as its the most electronegative
hope that helps <span />
Radio waves
microwaves
infrared waves
red waves
orange
yellow
green
blue
violet
Ultraviolet
xrays
gamma
Answer:
270.34
Explanation:
pressure, 550 pressure, 270.34
______________ = ___________
177 degree celsius. 87 degree celsius.
550 x 87 / 177 = 270.34
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.
