Hey there!
1 mole has 6.022 x 10²³ atoms.
Multiply that by 3.2 because we have 3.2 moles.
3.2 x 6.022 x 10²³
1.9 x 10²⁴
There are 1.9 x 10²⁴ atoms in 3.2 moles of chromium.
Hope this helps!
Generally, the top elements in group 16 will have a charge of -2, although the entire group isn't standardized.
Substances that will make a salt when combined is Soda and Ammonia
Answer: 3.57M
Explanation:Please see attachment for explanation
