5) Balance the following equation by oxidation number
method
S + NaOH - Na S + Na S202 + H2O​

What element breaks down into yttrium-90?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains