Answer:
Q = -897 kJ/mol
Explanation:
From the given information:
The heat released Q = -65.9 kJ
To start with the molar mass of = 2 × (molar mass of H) + 2 × (molar mass of O)
= (2 × 1.008) + (2 × 16.0 )
= 34.016 g/mol
However, given that:
mass of 2.50 g
The number of moles of =
Finally; Using the formula:
Q = -897 kJ/mol
The steps involved in solving for the percent yield in a chemical reaction are as follows:
(1) Write a balanced chemical equation.
(2) Determine the limiting reactant in the reaction.
(3) Calculate the theoretical yield of the reaction.
(4) Divide the actual yield by the theoretical yield and multiply by 100.
(5) Check that all significant figures are correct in the calculated value.
Answer:
c)
Explanation:
don't understand properly but it is c) cause they go through gens
Answer:
1. Causes air to vibrate 2. A hydroelectric dam generating electricity on a river