Double replacement and solubility rules
Grade 10 Science Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
In FeCl₃ + 3 NaOH → Fe(OH)₃ + 3 NaCl, 2 units of Fe(OH)₃ form. How many spectator ions, Na⁺ and Cl⁻ together, stay dissolved, Ari?
In FeCl₃ + 3 NaOH → Fe(OH)₃ + 3 NaCl, 5 units of Fe(OH)₃ form. How many spectator ions, Na⁺ and Cl⁻ together, stay dissolved, Bo?
In FeCl₃ + 3 NaOH → Fe(OH)₃ + 3 NaCl, 4 units of Fe(OH)₃ form. How many spectator ions, Na⁺ and Cl⁻ together, stay dissolved, Esme?
Which net ionic equation fits AgNO₃ + NaCl → AgCl + NaNO₃, Jun?
- Ag⁺ + NO₃⁻ → AgNO₃
- Na⁺ + NO₃⁻ → NaNO₃
- Ag⁺ + Cl⁻ → AgCl
Which ions are spectators in CaCl₂ + Na₂CO₃ → CaCO₃ + 2 NaCl, Kira?
- Ca²⁺ and CO₃²⁻
- Na⁺ and Cl⁻
- Ca²⁺ and Cl⁻
Milo says AgCl dissolves because chlorides are soluble. Agree or disagree?
- Agree: silver compounds dissolve
- Disagree: Ag⁺ is an exception
- Agree: the chloride rule has no exceptions
Noah says Na₂CO₃ won't dissolve because carbonates are insoluble. Agree or disagree?
- Agree: sodium compounds sink in water
- Agree: the carbonate rule has no exceptions
- Disagree: group 1 carbonates dissolve
Which pair of solutions forms white CaCO₃ when they meet, Ren?
- CaCl₂ and Na₂CO₃
- NaCl and Na₂CO₃
- CaCl₂ and NaNO₃
Which pair of solutions forms no precipitate when they meet, Tala?
- CaCl₂ and K₂CO₃
- KCl and NaNO₃
- AgNO₃ and KCl
A solution gives a white solid with silver nitrate. Which of its ions could cause the solid, Zee?
- Nitrate
- Chloride
- Sodium