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laiz [17]
3 years ago
5

Whose measurements are more precise?20.3 cm and 21.0cm

Chemistry
2 answers:
Musya8 [376]3 years ago
6 0
20.3 because it isn’t rounded
Gemiola [76]3 years ago
5 0

Answer:

will i think the 21.0cm

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Draw a condensed structure of each of the following
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The condensed structure of given compounds are shown in the below image.

<h3>What is functional group?</h3>

Functional group is the specific group which is present in an organic compound gives information about the properties of that compound.

  • In 1,2-propanediol compound hydroxyl functional group is present on the 1st and 2nd position.
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7 0
2 years ago
A 5.00-g sample of copper metal at 25.0 °C is heated by the addition of 133 J of energy. The final temperature of the copper is
vekshin1

<u>Answer:</u> The final temperature of the copper is 95°C.

<u>Explanation:</u>

To calculate the final temperature for the given amount of heat absorbed, we use the equation:

Q= m\times c\times \Delta T

Q = heat absorbed  = +133 J (heat is added to the system)

m = mass of copper = 5.00 g

c = specific heat capacity of copper = 0.38 J/g ° C      

\Delta T={\text{Change in temperature}}=T_2-T_1

T_1=25^oC

Putting values in above equation, we get:

+133J=5.00g\times 0.38J/g^oC\times (T_2-25)\\\\T_2=95^oC

Hence, the final temperature of the copper is 95°C.

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Which compound is responsible for the smell that is associated with the decomposition of dead animals?
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Name the organic compound: CH≡CH
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