3. I am not sure what is meant by shape, it could be to do with structure.
4. It is magnesium nitride, as adding nitrogen makes a nitride
Answer: A scientific model is a physical and mathematical and conceptual representation of a system of ideas, events or processes.
ANd also for your second question i dont know what you mean?
Explanation:
Answer:
B) water changes to ice
Explanation:
since its already water, it cant be anything beginning with steam.
The equation is x/25=3.2
*25 *25
-------------
x=80g
Answer:
it has different fatty acids
Explanation:
