Is the following equation an example of the law of conservation of matter? 2 HgO --> Hg+02
A)
Yes because the number of atoms in the reactant equal the number of
atoms in the product.
B)
Yes because the type of elements are the same on both sides of the
equation.
No because the number of atoms in the reactant do not equal the number
of atoms in the product.
D)
No because the type of elements are not the same on both sides of the
equation.

It is a ok  i know i have a brain functioning well.                                                                                                                                                           

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.