Chemistry reactions Flashcards
What color flame indicates the presence of Copper (Cu²⁺) in a Flame Test?
Light Blue Flame
What color flame indicates the presence of Iron (Fe²⁺) in a Flame Test?
Dirty Green Flame
What color flame indicates the presence of Iron (Fe³⁺) in a Flame Test?
Reddish Brown Flame
What colored precipitate forms with Copper (Cu²⁺) when reacted with Sodium Hydroxide (NaOH)?
Light Blue Precipitate
What colored precipitate forms with Iron (Fe²⁺) when reacted with Sodium Hydroxide (NaOH)?
Dirty Green Precipitate
What colored precipitate forms with Iron (Fe³⁺) when reacted with Sodium Hydroxide (NaOH)?
Reddish Brown Precipitate
What happens to Aluminium (Al³⁺) when excess Sodium Hydroxide (NaOH) is added?
Dissolves in excess NaOH
Colourless solution
What happens to Calcium (Ca²⁺) or Magnesium (Mg²⁺) when excess Sodium Hydroxide (NaOH) is added?
Remains Insoluble in excess NaOH
- Ca- calcium
- Mg- cream
What indicates the presence of Carbonate (CO₃²⁻) when reacted with Dilute Hydrochloric Acid (HCl)?
Fizzing and CO₂ Gas Produced (Effervescence)
What indicates the presence of Sulfate (SO₄²⁻) when reacted with Barium Chloride (BaCl₂)?
White Precipitate Formation
What colored precipitate indicates the presence of Chloride (Cl⁻) when reacted with Silver Nitrate (AgNO₃)?
White Precipitate
What colored precipitate indicates the presence of Bromide (Br⁻) when reacted with Silver Nitrate (AgNO₃)?
Cream Precipitate
What colored precipitate indicates the presence of Iodide (I⁻) when reacted with Silver Nitrate (AgNO₃)?
Yellow Precipitate
