Answer:
The reaction is not at equilibrium and reaction must run in forward direction.
Explanation:
At the given interval, concentration of NO = 
Concentration of
= 
Concentration of NOBr = 
Reaction quotient,
, for this reaction =
species inside third bracket represents concentrations at the given interval.
So, 
So, the reaction is not at equilibrium.
As
therefore reaction must run in forward direction to increase
and make it equal to
.
Remembering that
d = m ÷ v
d = ?
m = 89 g
v = 10 cm³
Therefore:
d = 89 ÷ 10
d = 8,9 g÷cm³
Answer:
Propane gas plus oxygen gas produces water and carbon dioxide.
Explanation:
This is the initial chemical equation: C3H8 + O2 = CO2 + H2O
This is the balanced chemical equation: C3H8 + 5 O2 = 3 CO2 + 4 H2O
Hot liquid rock comes in contact with Earth´s cold crust