Answer:
The first is true
The second is true IF the statement means that the human body contains energy
The third is true
The fourth is false
The correct answer is (4) zinc~
According to the reactivity series of metals, only zinc react with HCl (aq) at room temperature.
Hope this helps~
Answer:
Hydrosphere
Explanation:
Hydrosphere includes all water on the surface of the planet.
C the empty pills, because they can be linked back to see if death was a side effect.
Answer:
A single compound is simultaneously oxidized and reduced.
Explanation:
In chemistry, disproportionation is a simultaneous oxidation and reduction of a single chemical specie.
What this means is that; in a disproportionation reaction, only one compound is both oxidized and reduced. This implies that two products are formed during disproportionation. One is the oxidized product while the other is the reduced product.
Consider the disproportionation of CuCl shown below;
2CuCl -----> CuCl2 + Cu
Here, CuCl2 is the oxidized product while Cu is the reduced product.
