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marishachu [46]
4 years ago
7

A chemist mixes 500 g of lead at 500°c with 1,200 g of water at 20°c. she then mixes 500 g of copper at 500°c with 1,200 g of wa

ter at 20°c. the specific heat capacity of lead is 0.1276 j/g°c and the specific heat capacity of copper is 0.3845 j/g°c. what will be true about the final temperatures of the two systems?
Chemistry
1 answer:
Artemon [7]4 years ago
8 0
The final temperature of the lead-water system will be lower than the final temperature of the copper-water system.
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Which combination of atoms can form a polar covalent bond?
AnnZ [28]
Hydrogen and oxygen cn form a polar covalent bond

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3 years ago
What term refers to the small parts of a cell that carry out different functions?
deff fn [24]
That would be C. Organelles
4 0
4 years ago
Student A performed gravimetric analysis for sulfate in her unknown using the same procedures we did . Results of her three tria
soldi70 [24.7K]

Answer:

The answer is Sodium Sulfate = Na2SO4  

Explanation:

Molar mass of sulfate = 1 (S) + 4 (O) = 1 (32) + 4 (16) = 32 + 64 = 96  

Molar mass of sodium sulfate = 2 (23) + 96 = 46 + 96 = 142  

% of Sulfate = (96/142)*100 = 67.6%  

Percent mistake in Studen A,  

(I) % mistake = (67.6 - 68.6)/67.6 = 1.48  

(ii) % mistake = (67.6 - 66.2)/67.6 = 2.07  

(iii) % mistake = (67.6 - 67.1)/67.6 = 0.74  

For understudy B  

(I) % mistake = (67.6 - 66.7)/67.6 = 1.33  

(ii) % mistake = (67.6 - 66.6)/67.6 = 1.48  

(iii) % mistake = (67.6 - 66.5)/67.6 = 1.63  

Sutdent An is some how exact.  

Understudy B is exact however not precise.

8 0
4 years ago
An object on top of a building has a GPE of 23,048j and a mass of 39kg, What is the height of the object
kirill115 [55]

Answer:

<h2>59.1 m</h2>

Explanation:

The height of the object can be found by using the formula

h =  \frac{p}{mg }  \\

where

p is the potential energy

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

h =  \frac{23048}{39 \times 10}  =  \frac{23048}{390}  \\  = 59.0974...

We have the final answer as

<h3>59.1 m</h3>

Hope this helps you

3 0
3 years ago
Molecules are likely to dissolve in nonpolar solvents.
masha68 [24]
The answer to this is yes they are likely, true.
4 0
3 years ago
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