Lead (II) chloride+ potassium nitrate
PbCI2+KNO3(B)
Answer:
A. The increase in the mass of the magnesium oxide was due to oxygen atoms in the air.
Explanation:
Burning occurs in the presence of oxygen. A chemical combination occurs between Mg and O in that the atom of magnesium attracts one another.
Mg + O₂ → MgO
Starting with the magnesium, on reacting with oxygen a new compound forms. This is why there is mass increase in the MgO compared to the starting material.
2:5 is the answer have a awesome day
Answer:
3 mol H2/2 mol N2
Explanation:
Mole ratios are basically from the numbers/coefficients in front of the element
The answer should be A, increase the concentration of both