Look at the following chemical equation. hg + o2 = hgo2 how many atoms are on each side of the equation?

To solve this problem, look at each side of the equation individually.

1. First look at the reactant side: Hg + O2

There is one Hg (Mercury) and two O (Oxygen)

1+2= 3

There are 3 atoms on the reactant side

2. Then look at the product side: HgO2

There is one Hg and 2 oxygens yet again

1+2=3

There are three atoms on each side of the equation. You can simply count the atoms or remember the Law of Conservation of Mass.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.