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eimsori [14]
3 years ago
8

Which phase change is exothermic?

Chemistry
1 answer:
DerKrebs [107]3 years ago
8 0
Freezing, condensation, Deposition.
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The molecule ch3-ch2-ch2-ch2-ch2-ch2-ch3 is best described as a(n) ________.
Gwar [14]

Given molecule:

CH3-CH2-CH2-CH2-CH2-CH2-CH3

- The molecule contain only C and H atoms, hence it is a hydrocarbon

- The C atoms in the linear chain are linked together by carbon-carbon single bonds, hence it is a saturated compound

- It has 7 C atoms and 16 H atoms, hence the molecular formula is C7H16

-The molecular formula can be generally represented as CnH2n+2 where n = 7. This corresponds to the general molecular formula for alkanes

The given molecule is best described as an <u>alkane</u>


7 0
3 years ago
Operations with units”: Determine the units of the answers to the following problems.
sammy [17]

Answer:

1)  km  2)  cm^  3)  no units (kg cancels) 4) g/cm^3  5)  g  6)  g°C

Explanation:

Like units will cancel ((m/km)*(km) = m

Non-cancelled units remain (ml)*(g/ml)*(°C) = g°C

5 0
3 years ago
Describe the law of conservation of mass and how it applies to chemical reactions.
Lera25 [3.4K]

Answer:

the law of conservation of mass is whatever goes into a reaction comes out nothing is lost or gianed.

Explanation:

7 0
3 years ago
HEYYY FAM IS THIS RIGHT
Otrada [13]

Answer: A reversible reaction is a reaction that takes place in back and front directions. If the reaction were to reach equilibrium, the rate of forward direction would be equal to that of the reverse reaction.

Explanation:

Reversible reactions :

These are the reaction in which reactants reacts to give product and products reacts to give reactants as a product in return.

        A+B\leftrightharpoons C+D

  • In above equation, 'A' and 'B' are reacting together to give 'C' and 'D', as products and vice-versa.
  • When the above reaction reaches equilibrium the rate of forward and backward reaction becomes equal.




3 0
3 years ago
Whats the molar mass of CO
g100num [7]
28.01 g/mol

hope that helped
7 0
3 years ago
Read 2 more answers
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