Physical change because water is not a gas or change . you can see through it.
magnesium oxide is: MgO (right side)
so the left side is: Mg + O2
for the equation to be balanced there must be two oxygens on both sides
Mg + O2 = 2MgO
but now the magnesium is uneven, so there must be two magnesiums on each side
the answer is: B) 2Mg + O2 = 2MgO
Answer:
disposal of radioactive waste
Explanation:
if too much is released, it can wipe out large parts of the country
