The variable is what changes during an experiment. Hopefully this helped! :)
Answer: silicon Si, Germanium GE
Explanation:
Answer:
The answer would either be Carbon or Silicon.
Explanation:
4 Hydrogen Atoms should be correct. Because the 4 infront of it signifies the amount of hydrogen. It would also be 4 hydrogen atoms if it were written as H4N3, because the 4 is still around the H (as long as the 4 is under scored)