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Bezzdna [24]
2 years ago
13

Pleaaaaase hellllp asaaaap

Chemistry
1 answer:
rewona [7]2 years ago
8 0

Answer:

solve example number 2 ....

Explanation:

solve examole number 2 .....

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In which step of the four-stroke engine cycle does the spark plug initiate the combustion reaction?
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ANSWER
Power stroke

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At the power stroke stage, the piston is forced to move down by the expanding gases as both intake valve and exhaust valve are closed.
A spark from the spark plug contributes to ignition of the compressed fuel air mixture to released energy to perform work.
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