Answer:311740
Step-by-step explanation:
Given
There are 14 blue birds and 11 robins
We have to choose 7 members such that there are more blue birds than robins
This can be possible in 4 ways i.e.
7 BB,6 BB and 1 R, 5 BB 2 R,4 BB 3 R
Therefore total no of ways are
The amount of heat (in KJ) released when 3.5 moles of CH₄ react is 3115 KJ
<h3>Balanced equation</h3>
CH₄ + 2O₂ -> CO₂ + 2H₂O ΔH = 890 KJ
From the balanced equation above,
1 mole of CH₄ reacted to release 890 KJ of heat energy.
<h3>How to determine the heat energy released by 3.5 moles of CH₄</h3>
From the balanced equation above,
1 mole of CH₄ reacted to release 890 KJ of heat energy
Therefore,
3.5 moles of CH₄ will react ro release = 3.5 × 890 = 3115 KJ of heat energy
Thus, 3115 KJ of heat energy were released from the reaction
Learn more about enthalpy change:
brainly.com/question/11967318
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Answer:
Here. Solved. Check the answer.
Answer: x=7, y=-2
umm do you need to show work?