I believe that there are 12 oxygen atoms in aluminum sulfate, And 1 Sulfur and 2 aluminum. If you need anything else let me know.
Answer: 20 mg Te-99 remains after 12 hours.
Explanation: N(t) = N(0)*(1/2)^(t/t1/2)
N(t) = (80 mg)*(0.5)^(12/6)
N(t) = 20 mg remains after 12 hours
When magnesium ion doesn't give any characteristics colour with the flame test as electronic transisitons do not give out visible light.
Answer: Hello i am confused are you asking a question?
Explanation:
I believe it’s B I apologize if it’s wrong
