100g of ammonia releases 271.18 kJ of heat.
<u>Explanation:</u>
Given:
N₂ reacts with H₂
The reaction is:
2N₂ + 3H₂ → 2NH₃ + 92.2 kJ
According to the balanced reaction:
2 X 17g of ammonia releases 92.2 kJ of heat
34g of ammonia releases 92.2 kJ of heat
100g of ammonia will release =
kJ of heat
= 271.18 kJ
Therefore, 100g of ammonia releases 271.18 kJ of heat.
Answer:
The coefficient is equal to 
Step-by-step explanation:
we have

we know that
The coefficient is equal to

so

Answer:
3(4x - 1)
Step-by-step explanation:
Given
12x - 3 ← factor out the common factor of 3 from both terms
= 3(4x - 1)
Answer:
9
Step-by-step explanation:
easy question, 3x9=27