471.45g of Mg3P2
Here’s the answer and work shown
Answer:
The methane gas burns
Explanation:
The burning of methane gas is a combustion reaction. Combustion is an exothermic process. For all exothermic processes, ∆H is negative.
Combustion reaction involves the evolution of heat. The energy of reactants is greater than the energy of products hence the excess energy is given off in the form of heat leading to a negative value of the enthalpy of reaction, hence the answer.
Radiometric dating is not useful to directly determine the age of an igneous rock. It is a technique used todate<span> materials such as rocks or carbon, in which trace </span>radioactive<span>impurities were selectively incorporated when they were formed. Hope this answers the question. Have a nice day.</span>