The situation would be that, in a sealed tube, there are 3 to 4 nails inside and a certain amount of calcium chloride was added. After three days, there will be no changes to be observed in the first tube since the oxygen is not enough to initiate a change and there is no presence of water. For the second test, the same situation is made but boiling water was filled in the tube. For this, no changes would still be observed since there is no moisture. For the last test, the same situation as the first but it is filled halfway with water. After 3 days, rust would be observed on the nails. In order for rust to happen, there should be water and oxygen. The oxygen in the early atmosphere of the Earth would react with iron present in the oceans thus producing iron ores.
There are convergent,divergent and transform boundaries and convergent sits in the subduction zone and the divergent is two plates moving apart from each other and transform us where plates slide passed each other? Hope it helps I tried.
Benedict's reagent is solution of copper sulfate,sodium carbonated,and sodium citrate
Answer:
The cells are square
Explanation:
because they look more on the outside and I would expect them to be smaller
Make sure this is my opinion, I hope it is true
Answer:
The cell would be unable to store food, water and waste D..