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Akimi4 [234]
4 years ago
11

Brief description of a iceberg, in your OWN words

Chemistry
2 answers:
GrogVix [38]4 years ago
5 0
An iceberg is a large floating mass of ice detached from a glacier or ice sheet and carried out to sea.
cestrela7 [59]4 years ago
4 0

Answer: AN underwater ice mountain

Explanation:

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Temperature and silica content determine the _______ of magma. A. color B. elasticity C. viscosity D. texture
Rudik [331]
Hello.

The answer is 

<span> C. viscosity.

</span>Temperature and silica content determine the viscosity of magma. 

The viscosity of amagma<span> is largely controlled by the </span>temperature.
<span>
Have a nice day.</span>
3 0
4 years ago
Given the following information:Br2 bond energy = 193 kJ/mol F2 bond energy = 154 kJ/mol 1/2Br2(g) + 3/2F2(g) -&gt; BrF3(g) = –3
arlik [135]

Answer:

C) 712 KJ/mol

Explanation:

  • ΔH°r = Σ Eb broken - Σ Eb formed
  • 1/2Br2(g) + 3/2F2(g) → BrF3(g)

∴ ΔH°r = - 384 KJ/mol

∴ Br2 Eb = 193 KJ/mol

∴ F2 Eb = 154 KJ/mol

⇒ Σ Eb broken = (1/2)(Br-Br) + (3/2)(F-F)

⇒ Σ Eb broken =  (1/2)(193 KJ/mol) + (3/2)(154 KJ/mol) = 327.5 KJ/mol

∴ Eb formed: Br-F

⇒ Σ Eb formed (Br-F) = Σ Eb broken - ΔH°r

⇒ Eb (Br-F) = 327.5 KJ/mol - ( - 384 KJ/mol )

⇒ Eb Br-F = 327.5 KJ/mol + 384 KJ/mol = 711.5 KJ/mol ≅ 712 KJ/mol

8 0
3 years ago
In which Earth system does the rock cycle take place?
e-lub [12.9K]

Answer:

geosphere

Explanation:

geo means rocks this is the area

hope this helps dude

6 0
3 years ago
Read 2 more answers
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

3 0
3 years ago
Carbonyl sulfide has the chemical formula COS. Carbon has four valence electrons, and oxygen and sulfur each have six valence el
FrozenT [24]

Answer:

The attached image should be your answer for the Lewis Structure of COS

Explanation:

3 0
3 years ago
Read 2 more answers
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