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Luba_88 [7]
3 years ago
9

URGENT!!!!???! Please respond in less than 5 minutes!??!

Chemistry
1 answer:
garik1379 [7]3 years ago
5 0

Answer:

Both are B. Hope this helps.

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Heat is added to a 200.-gram sample of H2O(s) to melt the sample at 0°C. Then the resulting H2O (image) is heated to a final tem
pochemuha
You are given 200 grams of H2O(s) at an initial temperature of 0°C. you are also given the final temperature of water after heating at 65°C. You are required to get the total amount of heat to melt the sample. The specific heat capacity, cp, of water is 4.186 J/g-°C. Let us say that T1 = 0°C and T2 = 65°C. The equation for heat, Q, is  

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3 years ago
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What is the mass percent of nitrogen in:<br><br> 1. N2O<br> 2. NO<br> 3. NO2<br> 4. N2O2
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We’re going to use the mass percent formula shown below:



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98% (271 ratings)
View Complete Written Solution
Problem Details
Calculate the mass percent composition of nitrogen in each nitrogen-containing compound:

c. NO2
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2 years ago
How many atoms are in four molecules of oxygen gas ​
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Answer:

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