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Ne4ueva [31]
3 years ago
10

Someone help me with question pls

Chemistry
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0

Explanation:

the conductors are the three u have checked

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Chemical reaction when chromium metal is immersed in an aqueous solution of cobalt(II) chloride.
Marrrta [24]

2Cr + 3CoCl_2→ 2CrCl_3 + 3Co

Explanation:

  • The products formed are chromic chloride and cobalt.

        Chromium + Cobaltous Chloride = Chromic Chloride + Cobalt

  • Type  of reaction is Single Displacement (Substitution) which is there is a displacement of one atom.

Reactants used in the reaction are -

  • Chromium(Cr)
  • Cobaltous Chloride (CoCl_2)

Products formed in the reaction are -

  • Chromic Chloride(CrCl_3)
  • Cobalt (Co)

Hence, the chemical reaction is as follows -

  • Cr + CoCl_2 →CrCl_3 + Co

For balancing the above chemical equation we need to add a coefficient of 2 in front of chromium and of 3 in front of cobalt(II)chloride on right-hand-side while of 2 in front of chromium chloride and of 3 in front of carbon monoxide on left-hand-side of the equation.

Hence, the balanced equation is -

2Cr + 3CoCl_2→ 2CrCl_3 + 3Co

3 0
4 years ago
Identify the cfc with the shortest atmospheric lifetime
goldenfox [79]
CFC-11 is typically the CFC with the shortest atmospheric lifetime. 
5 0
3 years ago
Listed below are blood groups of o, a, b, and ab of randomly selected blood donors (based on data from the greater new york bloo
KIM [24]
The answer to this is 22, confirmed by gradpoint
3 0
3 years ago
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Given that the density of iron is 7.9 g/cm3, what would be the volume of a 15.8 g piece of iron
Anuta_ua [19.1K]

Answer:

2cm^3

Explanation:

Use the density triangle: D=MxV

Switch for variables, V=M/D

Plug in numbers, 15.8g/7.9g/cm^3=2cm^3

7 0
4 years ago
Which of the following is true of gases?
aniked [119]

Answer:

Answer:  A. Gases are easily compressed because of the low density.

Explanation:

8 0
3 years ago
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