Solid carbon reacts with oxygen gas to form carbon dioxide gas.
The balanced chemical equation for this reaction:
Answer:
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane.
k=.240/(.4)^2=1.5 assuming [A]2 means [A] squared
C. the substance only changed form or appearance
the substance changes at a chemical level, not just in appearance