Answer : The energy released is -3319.7 KJ.
Solution : Given,
Mass of methane = 59.7 g
Molar mass of methane = 16 g/mole
The value of is in negative that means the energy is releasing.
First we have to calculate the moles of methane.
Moles of methane =
Now we have to calculate the amount of energy released.
The given reaction is,
From the reaction, we conclude that
1 mole of methane releases -890 KJ/mole of energy
3.73 moles of methane releases of energy
Therefore, the energy released is -3319.7 KJ.
The answer is D higher potential energy and is unstable
Answer:
HClO3(aq) -----> H+(aq) + ClO3-(aq)
HClO3(aq) + H2O(l) -----> H3O+ (aq) + ClO3- (aq)
Explanation:
To arm the chemical equations, remember that in a strong acid (bases too) you have one arrow to products; in weak acids and bases you have equilibrium, that's why we have 2 arrows on the equations.
The final step in the scientific method is the conclusion. The conclusion will either clearly support the hypothesis or it will not. If the results support the hypothesis a conclusion can be written