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Delicious77 [7]
2 years ago
10

Please help asap chemistry homework

Chemistry
2 answers:
devlian [24]2 years ago
4 0

Answer:

(See attachment below)

Explanation:

Slav-nsk [51]2 years ago
3 0

Answer: 4. 5.15 Moles

5. 6.02×10 atoms

. 7. 1.3545×10^23 atoms

8. 1.73075×10^22 atoms

. 10. 3.40499×110 atoms

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Chemical reaction when chromium metal is immersed in an aqueous solution of cobalt(II) chloride.
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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 -

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Hence, the chemical reaction is as follows -

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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

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