because since there are now 4 electrons(-) you can tell that it had 4 protons (+) before so -4+4 is 0 which makes it neutral. hope it helps.
Explanation: where the article????
The elements are arranged by atomic mass. Before, they were arranged by atomic mass.
Answer:
548.089 J
Explanation:
-The molar mass of copper is 63.546 grams.
-We obtained the mass of 0.762 moles of copper:
-We apply the specific heat formula to calculate the amount of heat released:
Hence, the amount of heat released is 548.089 J
Answer:
CH3Br ( Methyl Bromide )
Explanation:
H9 C3 Br3 => rewrite as: C3H9Br3 => actually, this is 3 moles of molecule CH3Br !
C3H9Br3 ~ 3( CH3Br)
I hope this answer can help you. Have a nice day!