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saveliy_v [14]
3 years ago
6

Which of the following are examples of conservable quantities? a. potential energy and length c. mechanical energy and mass b. m

echanical energy and length d. kinetic energy and mass
Chemistry
1 answer:
Blababa [14]3 years ago
7 0

Answer:

b

Explanation:

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gavmur [86]

Answer:

4 th image

Explanation:

water is being boiled n the 4th image indicating that the change between liquids and gasses is water vapor.

5 0
3 years ago
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For the balanced equation shown below, how many moles of o2 will react with 0.3020 moles of co2? 2c2h5oh + 6o2 → 4co2 + 6h2o que
MariettaO [177]
The balanced reaction for combustion is as follows ;
2C₂H₅OH + 6O₂ ---> 4CO₂ + 6H₂O
the stoichiometry of C₂H₅OH to O₂ is 2:6
that means 2 mol of C₂H₅OH reacts with 6 mol of O₂.
when 1 mol of C₂H₅OH reacts with 6/2 mol of O₂,
then 0.3020 mol of C₂H₅OH reacts with - 6/2 x 0.3020
therefore number of O₂ moles reacted = 0.91 mol
6 0
3 years ago
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As water is cooled from 4º C to 0°C, its density
frosja888 [35]

Answer:

decreases

Explanation:

3 0
3 years ago
What element has the electron configuration below? *<br><br> please help me
timofeeve [1]

Answer:

Symbol Ar

Group 18

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Explanation:

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8 0
2 years ago
I don’t really understand, if anybody can help I’ll really appreciate it ! Thank you.
Alex_Xolod [135]

Answer:

175

Explanation:

3 0
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