Single replacement reactions and the activity series
Grade 10 Science Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
In Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag, 5 copper atoms react. How many silver atoms form, Bo?
In Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag, 4 copper atoms react. How many silver atoms form, Esme?
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Activity ladder (most active at the top) (CK-12 activity series)
metal replaces hydrogen from potassium (K) cold water sodium (Na) cold water magnesium (Mg) steam aluminum (Al) steam zinc (Zn) steam iron (Fe) steam nickel (Ni) acids tin (Sn) acids hydrogen (H₂) reference line copper (Cu) neither water nor acids silver (Ag) neither water nor acids gold (Au) neither water nor acids Using the ladder, can copper replace hydrogen from an acid, Kira?
- Yes: copper is a shiny metal
- Yes: copper is above hydrogen
- No: copper is below hydrogen
Using the ladder, which metal can replace copper in a compound, Luz?
- Silver
- Zinc
- Gold
In a single replacement reaction, what happens, Milo?
- An element replaces one in a compound
- A compound splits into its elements
- Two compounds swap their partners
Which equation is a single replacement, Noah?
- 2 H₂ + O₂ → 2 H₂O
- CaCO₃ → CaO + CO₂
- Zn + CuSO₄ → ZnSO₄ + Cu
Zinc sits in blue copper sulfate solution. What coats the zinc, Pia?
- Reddish-brown copper
- Gray silver crystals
- Yellow sulfur powder
Will magnesium react with zinc nitrate solution, Ren?
- No: a metal can't replace a metal
- Yes: magnesium is above zinc
- No: magnesium is below zinc
Will silver react with copper(II) nitrate solution, Tala?
- No: silver is below copper
- Yes: silver is above copper
- Yes: silver is a shiny metal
Will iron react with dilute hydrochloric acid, Zee?
- No: acids don't react with metals
- No: iron is below hydrogen
- Yes: iron is above hydrogen