Answer:
They are concentrated between atomic numbers 84 and 118 on the periodic table.
1. C
2. B
3. B
4. sorry, but we cant see the pictures. thats all I can do.
-Chad
Answer:600
Explanation:
hi <3
a mixture is a group of compounds that aren't chemically combined
thus, it would be picture III and IV.
hope this helps :)
Cr 1 x 2 O 1.5 x 2 = Cr2O3
