It should be 8 O atoms. 3O atoms in Na2S2O3 and 5O atom in 5H2O. The reason there are 5 O atoms are because the 5 in front of H2O means you multiply each atom in the compound by that number (like the distributive property). The H2 molecule becomes 10 Hydrogen atoms (5*2) and the Oxygen becomes 5 Oxygen atoms (5*1). Then you add the 5O atoms to the 3O atoms which equals 8
I'm not entirely sure what this is in relation to but I will try my best: the hydrosphere (water), Geosphere (land) and atmosphere (air) (there's also the biosphere but that's just the living things on earth (plants and animals) but for now we will ignore this) are the three main "spheres"If one of the three main spheres are disrupted the others are also disrupted. think of it this way:
There's an earthquake on the sea floor from an underwater volcano which effects the geosphere and because of this earthquake there's a tsunami, and the volcano disrupts the air content adding things such as sulfur into the air.
so - a way you can shape the geosphere is by effecting one of the other spheres. ie. putting litter in streams.
It could be a lump of coal.
Since you can break pieces off, maybe charcoal ... the real thing, not a "briquet".
Do your hands get all black when you handle it ?
Answer: Rachel Carson was a brilliant woman who after following her dreams to become a scientist, even though many people warned her of her inevitable failure, wrote the book Silent Spring that changed the way the world view environmental safety.
Explanation: