A.) half - life of a radioactive substance is defined as the time during which concentration of the substance becomes half the initial value.
The correct answer would be 3.) Location of an electron
Explanation:
unorganized and unsorted i think this is the answer
Magnesium(?)
<span>2 HCl + Mg ? MgCl2 + H2</span>
Answer:
D. Is the correct Option!
----------------------------------------
<u><em>Hope this helps!!! :)</em></u>
