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Pachacha [2.7K]
3 years ago
11

Blonde hair is a dominant trait. (True or flase)​

Chemistry
2 answers:
quester [9]3 years ago
3 0

Answer:

False

Explanation:

postnew [5]3 years ago
3 0

Answer:

false

Explanation:

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Tasya [4]

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the activation energy would be 200 kJ since we are looking an endothermic reaction.

Explanation:

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4 years ago
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Calculate ΔH⁰298 (in kJ) for the process P(s) + 5/2 Cl2(g) → PCl5(g) from the following information.
Viefleur [7K]

Answer:

\Delta H_{298}^{0} for the process is -375 kJ

Explanation:

  • Given reaction is a combination of the two given elementary steps.
  • Summation of change in standard enthalpy (\Delta H_{298}^{0})of the two elementary reactions give \Delta H_{298}^{0} of the reaction P(s)+\frac{5}{2}Cl_{2}(g)\rightarrow PCl_{5}(g).

P(s)+\frac{3}{2}Cl_{2}(g)\rightarrow PCl_{3}(g)......\Delta H_{1}=-287kJ

PCl_{3}(g)+Cl_{2}(g)\rightarrow PCl_{5}(g)......\Delta H_{2}=-88kJ

-----------------------------------------------------------------------------------------------------

P(s)+\frac{5}{2}Cl_{2}(g)\rightarrow PCl_{5}(g)

\Delta H_{298}^{0} = \Delta H_{1}+\Delta H_{2}=-287kJ-88kJ=-375kJ

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3 years ago
What is a substanceeas​
Mumz [18]

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substance*? a particular kind of matter with uniform properties.

Explanation:

5 0
3 years ago
For MODERATORS ONLY
MissTica

Answer:

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3 years ago
When making calculations, you should rely on the precision of your measured data.
ELEN [110]
True 

Im happy i could help you today 

have a great rest of ur week :)
3 0
3 years ago
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