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Elodia [21]
3 years ago
13

Which illustration represents high accuracy but low precision?

Chemistry
1 answer:
Rashid [163]3 years ago
7 0
Wait what is the question
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What volume of 2.50 m lead ll nitrato
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3 years ago
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Consider an insulated container in which water (2.58 g) solidifies at 0 oC and 1 atm on the surface of a 55 g aluminum block. As
yarga [219]

Answer:

17.41°C is the change in temperature of the aluminum block.

Explanation:

Latent heat of fusion water = 334 J/g

Heat required to freeze 1 gram of water = -334 J

Heat required to freeze 2.58 grams of water = Q

Q=2.58 g\times (-334 J/g)=-861.72 J

Heat lost by water will be equal to heat gained by the aluminum block

Q'=-Q

Q'= -(-861.72 J)=861.72 J

Formula used to calculate heat absorbed by substance:

Q=mc\Delta T

Where:

Q = heat absorbed by substance

c = specific heat of substance

m = Mass of the substance  

ΔT = change in temperature of the substance

We have :

Mass of aluminum block= m= 55 g

Heat capacity of aluminum = c = 0.9 J/g°C

Change in temperature of the aluminum block= ΔT = ?

Heat absorbed by the aluminum = Q'

861.72 J=55 g\times 0.9 J/g^oC\times \Delta T

\Delta T=17.41 ^oC

17.41°C is the change in temperature of the aluminum block.

8 0
4 years ago
Balance the following chemical equation (if necessary) for the synthesis of aspirin from salicylic acid and acetic anhydride sho
labwork [276]

\\ \tt\rightarrowtail C_7H_6O_3+C_4H6O_3\longrightarrow C_9H_8O_4+C_2H_4O_2

It's already balanced

On both sides

  • C=11
  • H=12
  • O=6
5 0
2 years ago
Need help on this please help
True [87]
the time for one orbit of earth around the sun
7 0
3 years ago
I need help on this question I need to finish this
Nesterboy [21]

Answer:

D

Explanation:

Diabetes is caused when the pancreas has trouble producing insulin, a hormone that lowers blood sugar levels. Since the endocrine system deals with hormones, diabetes is an endocrine system disease.

3 0
4 years ago
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