Answer:
For me
Explanation:
It's Cu because other compound contains negative radicals
Answer:
I think the answer is A - they used X-ray analysis.
Explanation:
4Al+6Fe(NO3)2= 6Fe+4Al(NO3)3
40 drops of blood in a tube that holds 2 mL
The answer to this would be a physical change. Physical changes are changes that affect the form of a chemical substance, but not the chemical composition itself. Hope this helped!