Which of the following changes is/are exothermic for the underlined object?
i.ice melts
ii.hot french fries cool
iii.a beaker warms as chemicals react within it
iv.a hot plate warms a beaker of water
v.water evaporates off of skin
A) iii and iv
B) i and v
C) ii only
D) All are exothermic
E) None is exothermic
Correct Answer:
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Q19: Which of the following is a chemical
Q20: Examine the following particulate-level representation. 
Q21: Examine the apparatus shown in the following
Q22: Consider the particulate-level illustration: Q23: Which of the following are compounds? Q25: Which of the following are elements? Q26: Consider the particulate-level illustration: Q27: Which of the following particulate-level picture might Q28: Which of the following is false? Q29: Which of the following is false?
i.Carbon dioxide
ii.Silicon
iii.Sodium
i.KOH
ii.Ne
iii.CO
iv.Carbon tetrachloride
v.Calcium
A)i,
A)Two objects,
A)IF is
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