Because while doing research scientist follow the scientific metod.The scientific method involves exploration and observation and the search for the answer for a question. And there will always some hypotesis that while experimenting reveal to be wrong.
Answer: did she conect the wire to de batery?
Water is held together by hydrogen bonds.
Water molecule: H2O:
--- = hydrogen bond
O
/ \
H H ---O
/ \
H H
The number of atoms in a molecule can be calculated by adding all of the number of elements from the chemical formula. For chlorophyll, the chemical formula would be <span>C55H72MgN4O5 adding all the elements we have 137 atoms. Hope this answers the question.</span>
