2Na + Br2 -> 2NaBr
Br is a diatomic element so the 2 is a subscript, not a coefficient.
I think that this would be the excretory system.
The Digestive systems breaks down food into nutrients the body can use
The respiratory system brings in oxygen and removes carbon dioxide
The excretory system removes waste products from the body
The nervous system controls all other systems and processes information
Answer:
The red star denotes the mainshock epicenter of the 2011 Tohoku-oki earthquake (Mw 9.0). The jagged black line denotes the Japan trench. The mechanism of great megathrust earthquakes is influenced by the frictional properties, structure and composition of the plate boundary fault10.
Explanation:
Answer:
Ok so I assume they gave u a reaction before asking this question. Look at that reaction and try to figure out what substances are changing in valency, if there is a substance(s) that doesn't change its valency then it's a spectator ion.