Answer:
An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. Each electron is negatively charged. The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.
All are the same. It equals to the same thing.
The answer is B. 6CO2+H2O yields C6H12O6+ 6H20.
I think that the answer is (D)... I hope this helped
