Plastic building blocks are good for building molecules because of some useful properties which they possess. For instance, plastic are flexible, they can be easily manipulated and can be made into any shape, size and combination. They can also be produced using different colors. Because of these features, they can be used to build and to explain how molecules behave.
Answer:
Physical change: A,C ,D, F, H, I
Chemical Change: B, E, G, J, K
Answer: the cell will absorb more water which can lead to haemolysis (rising and bursting of the cell)
Explanation:
8 kilometer? is that right or explain to me pls.
The ion that will be formed by the selenium atom shown below when it has a stable set of valence electrons is D) Se2-.
