The answer:
for the monoatomic <span>selenium ions
</span> -the ion charge of selenium is 2-, so the answer is [Se]2+
as for the monoatomic phosphorus ions
-the ion charge of phosphorus is 3-, so the answer is [P]3-
Cover with metal .Any elements other than hydrozen and helium concentration shows an absorbance
Answer:
Hey, I'll help but I don't know what your options are.
Explanation:
It is false because an endothermic reaction will also start when energy is received from the environment when there is no solution involved
