Answer:
7.85% of Hydrogen in the sample.
Explanation:
51/650 = .07846 x 100= 7.846% (round up)
The answer is that the pebbles turn into sand
Answer:
The nucleus of the atom contains the protons and neutrons. The protons are positively charged while the neutrons have no charge; they are neutral. The outer part of the atom contains the electrons and shells or orbits. The electrons are negatively charged while the shells or orbits hold the atoms in its place.
Hydrocarbon, to my knowledge is an organic compound consisting mainly of hydrogen and carbon. It is mainly found in petroleum and natural gas. Hope this helps!
