It would be C) atoms of the opposite charges. iconic bonds are formed by the attraction of two atoms of the opposite charge.
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can you please make this the brainiest answer it would really help me. thank you :)
ANSWER
Power stroke
EXPLANATION
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.
Actually, it could indeed be the independent variable.
