A pair of 100mL samples of water are taken from a well bored into a large underground salt NaCl deposit. Sample #1 is from the top of the well, and is initially at 32°C. Sample #2 is from a depth of 50.m, and is initially at 42°C. Both samples are allowed to come to room temperature (20.°C) and 1atm pressure. An NaCl precipitate is seen to form in Sample #1. a. A bigger mass of NaCl precipitate will form in Sample
b. A smaller mass of NaCl precipitate will form in Sample
c. The same mass of NaCl precipitate will form in Sample #2.
d. No, precipitate will form in Sample #2.
e. I need more information to predict whether and how much precipitate will form in Sample #2.

The correct is A (A bigger mass of NaCl precipitate will form in Sample #2)

Explanation:

From the question we are told that

The volume of each sample is

The temperature of sample one is

The temperature of sample two is

The depth from where sample two is gotten is

The final temperature of the samples is

The final pressure is

From the data given we see that the initial temperature of sample 2 is more than sample 1 so more NaCl will be dissolved in 2

Now when both samples are brought to there will be a greater decrease in temperature in sample 2 than in sample 1 so more precipitate of NaCl will be formed in sample 2 than in sample one

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answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.