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Author Question: How much heat is necessary to change 20 g of ice at 10C into water at ... (Read 15 times)

Mr. Wonderful

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How much heat is necessary to change 20 g of ice at 10C into water at 20C?

Question 2

Two nuclei which share the same mass number A always are (Hint: Eliminate any wrong answers.)
 a. stable.
  b. unstable.
  c. isotopes.
  d. isobars.
  e. radioactive.



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pangili4

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Answer to Question 1

2.1 kcal

Answer to Question 2

d



Mr. Wonderful

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pangili4

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