The given condition is STP, under this condition, gas has a rule of 22.4 L per mole. And the given equation is already balanced. The ratio of mole number is the same as the ratio of the volume and is also the same as the ratio of coefficients. So the answer is 4.0 liters.
Answer C. is correct:
(molar mass of Mg) + (2 x molar mass of O) + (2 x molar mass of H)
:-) ;-)
Yes MgF2 is a pure substance
Atoms can be combined with other atoms to form molecules. Matter is anything that has mass and takes up space. ... Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed
