I believe it’s C ) chemical changes since chemical changes are usually permanent
It’s the first one they both produce the plants pollen
Answer:
cetacean i think thats the answer
I JATW THAT I NEED TO ANSWER TO ASK
If the burning of magnesium to form magnesium oxide is incomplete, there will still br some elemental magnesium available to be burned (ie combined with oxygen) and so there will be a measureable amount of mass of magnesium left. Also, the amount of oxygen required to combine with the outstanding mass of magnesium could also be determined.
