<em>Q=mcΔT</em>
<em>Q=15.2g(0.397</em><span><em>J/g C)(40.3-21)</em>
<em>Q=</em><u>116.5J</u></span>
The answer is 172.39950000000002
I think the answer is c. I'm sorry if I'm wrong. I hope this helps also
MY answer would be C knowing what your income is
sorry if im wrong if i am i guess it would be D
There are two electrons in 4s and 6 in 3d. When you lose 3 electrons, you will be left with an ion of 3+ charge!