Answer:
you need to send us the figure
Explanation:
Out of the options, the best indicator is a color change since it is the only one that can't really be blamed on a physical change. you will eventually notice that during qualitative labs and some quantitative labs, usually the thing that you are looking for is either color change or the production of a precipitate to indicate the presence of a chemical reaction
I’m sorry I just really need points rn I love you
Answer:
In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium.
