Answer: i can understand it sorry
Explanation:
Answer:
Reverse the
reaction
Explanation:
Reactions:
![N_2O_4 \longrightarrow 2 NO + O_2](https://tex.z-dn.net/?f=N_2O_4%20%5Clongrightarrow%202%20NO%20%2B%20O_2)
Overall:
![N_2O_4 \longrightarrow 2 NO_2](https://tex.z-dn.net/?f=N_2O_4%20%5Clongrightarrow%202%20NO_2)
As can be seen, in the overall reaction we have
in the reactants like in the second reaction and
in the products. The
is in the first reaction but as a reactant so we need to reverse that reaction:
![N_2O_4 \longrightarrow 2 NO + O_2](https://tex.z-dn.net/?f=N_2O_4%20%5Clongrightarrow%202%20NO%20%2B%20O_2)
Combining:
![N_2O_4 + 2 NO + O_2\longrightarrow 2 NO + O_2 + 2 NO_2](https://tex.z-dn.net/?f=N_2O_4%20%2B%202%20NO%20%2B%20O_2%5Clongrightarrow%202%20NO%20%2B%20O_2%20%2B%202%20NO_2)
![N_2O_4 \longrightarrow 2 NO_2](https://tex.z-dn.net/?f=N_2O_4%20%5Clongrightarrow%202%20NO_2)
B. Density
Density = mass/volume because it’s basically the concentration of mass. How much matter takes up the space. If you pack more matter into less space, it is more dense.
it's the first one. the one with ox in it
CaCO₃ + 2HCl = CaCl₂ + CO₂ + H₂O
D. All of the Above (A, B, C)