A - Endothermic. This is because it absorbs heat rather than releases it.
B - Exothermic. It's releasing heat which in turn makes the beaker hot.
C - Endothermic. The Ammonium Chloride is absorbing the heat away from the beaker.
D - Exothermic. To produce nuclear energy, it needs to release heat.
E - Endothermic. The hydrogen and oxygen atoms are absorbing the heat given off from the electric current.
F - Exothermic. It is producing heat or releasing heat.
Exothermic is the losing, release, or production of heat. Endothermic is the exact opposite; it is the storing of heat.
Hope this helps!
Iron-Metal
Boron, Carbon- Same period
Cobalt,Iron- Same family
Hydrogen- smallest atomic number
If C is 20 D should be 21
By gaining an electron (perhaps via beta particle). The H+ ion needs another electron to remove its positive charge.
Answer:
a
Explanation:
conduction is basically anything you can touch and thermal energy is your body heat to an object
