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, 3 copper atoms react. How many silver atoms form, Ari?
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 above hydrogen
- No: copper is below hydrogen
- Yes: copper is a shiny metal
Using the ladder, which metal can replace copper in a compound, Luz?
- Gold
- Zinc
- Silver
In a single replacement reaction, what happens, Milo?
- An element replaces one in a compound
- Two compounds swap their partners
- A compound splits into its elements
Which equation is a single replacement, Noah?
- CaCO₃ → CaO + CO₂
- Zn + CuSO₄ → ZnSO₄ + Cu
- 2 H₂ + O₂ → 2 H₂O
Zinc sits in blue copper sulfate solution. What coats the zinc, Pia?
- Reddish-brown copper
- Yellow sulfur powder
- Gray silver crystals
Will magnesium react with zinc nitrate solution, Ren?
- Yes: magnesium is above zinc
- No: a metal can't replace a metal
- No: magnesium is below zinc
Will silver react with copper(II) nitrate solution, Tala?
- No: silver is below copper
- Yes: silver is a shiny metal
- Yes: silver is above copper