Answer:
Step-by-step explanation:
false
false
true
6 7/8 - 4 3/8
= 2 4/8
= 2 1/2
Answer:
Step-by-step explanation:
The arithmetic sequence has the form:
When a=10.31, n=9, we substitute to get:
Similarly, when n=13 and a=11.71, we get:
Subtract equation 1 from equation 2 to get:
This implies that
Substitute into the second equation to get:
Solve to get
Hence the explicit formula is:
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:
3 * 2^2 * 5^3
Step-by-step explanation:
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