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Author Question: How much heat is necessary to change 20 g of ice at 10C into water at ... (Read 41 times)

Mr. Wonderful

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on: Jul 28, 2018
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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Reply #1 on: Jul 28, 2018
Answer to Question 1

2.1 kcal

Answer to Question 2

d


Mr. Wonderful

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Reply #2 on: Jul 28, 2018
Thank you!


pangili4

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Reply #3 on: Jul 28, 2018
Always glad to help...


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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

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