The signs of q and w for gasoline burning are,respectively:
A) negative and negative.
B) positive and positive.
C) positive and negative.
D) negative and positive.
Correct Answer:
Verified
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Q7: Which process is endothermic?
A) melting
B) boiling
C) evaporating
D)
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Q13: A sample of sodium hydroxide dissolves in
Q14: Which reaction represents the melting of
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