Answer:
![H_2SO_4](https://tex.z-dn.net/?f=%20%20H_2SO_4%20)
Explanation:
In the first option, the compound
has 1 hydrogen atom and 3 Oxygen atoms. There are 3 times as many oxygen atoms as hydrogen atoms.
In the second option, the compound
has 2 hydrogen atom and 4 Oxygen atoms. That is 2:4 = 1:2. Therefore, there are twice as many oxygen atoms as hydrogen atoms.
In the third option, the compound
has 2 hydrogen atoms and 1 Oxygen atom. There are ½ times as many oxygen atoms as hydrogen atoms.
In the fourth option, the compound
has 3 hydrogen atoms and 4 Oxygen atoms. 4 oxygen atoms to 3 hydrogen atoms.
answer:As the current travels through the wires and the filament, the filament heats up to the point where it begins to emit photons, which are small packets of visible light. In a typical 60-watt light bulb, the filament is made of a long, thin length of tungsten metal.
Inventor: Joseph Swan; Thomas Edison
Explanation:
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The effects may be minor such as blacking of the surface.
I think it is B it’s deal a lot with experiment and observing