2 years ago

PLEASE HELP DECODE THIS

Chemistry

1 answer:

Naily [24]2 years ago

4 0

Tungsten (W) is the element

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When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al ( s ) + 6 HCl ( aq ) ⟶ 2 AlCl 3 ( aq )

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The volume of hydrogen gas produced at STP is 4.90 liters.

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Then 0.1333 moles of aluminium will give:

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3 years ago

Write balanced complete ionic equation for K2SO4(aq)+CaI2(aq)→CaSO4(s)+KI(aq)

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K₂SO₄ + CaI₂ → CaSO₄ + KI

  K: 2 K: 1
S: 1 S: 1
  O: 4 O: 4
Ca: 1 Ca: 1
  I: 2 I: 1
↓
K₂SO₄ + CaI₂ → CaSO₄ + 2KI

  K: 2 K: 2
S: 1 S: 1
  O: 4 O: 4
Ca: 1   Ca: 1
  I: 2 I: 2

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2 years ago