Answer:
the same
Explanation:
due to the law of conservation of mass, the mass will not change
SiO2 is the only possible choice because the other formulas contain metals. how do we know this? because the other formulas contain elements located on the left of the “staircase” on the periodic table that separates metals from non-metals.
Compare it to the chart showing how base or acidic a substance is
CaVa=CbVb
2xV=1X25
V=25/2
V=12.5ML
They are made up of particles that are arranged in a repeating pattern.