The balanced chemical equation would be as follows:
<span>
Mg + O2 → MgO2
</span>We are given the amounts of the reactants. We need to determine first which one is the limiting reactant. We do as follows:
62.0 g Mg (1 mol / <span>24.31 g ) = 2.55 mol Mg
</span>55.5 g O2 ( 1 mol / 32 g ) = 1.74 mol O2 -----> <span>consumed completely and therefore the limiting reactant
2.55 mol - 1.74 mol O2( 1 mol Mg / 1 mol O2 ) = 0.81 mol Mg excess</span>
The 2 represets 2 nitrogen gas atoms
A hypothesis is a prediction of an outcome and the basis for experimentation.
Answer:
Newly discovered star is a younger star
Explanation:
The composition of the newly discovered star is Hydrogen, Lithium, Neon, Sodium, Mercury
It consists of both hydrogen and helium of which the old stars are not made up of as they are heavier than the new stars.
Considering the above fact, it can be stated that the new star is a young star.
Answer:
Explanation:
If an electron is in an excited state it can return to a lower energy level. When it does this, it loses energy. The amount of energy it loses will be equal to the difference in the energy levels it moves between. This energy is released as a photon.
