Reactivity Basics
What is the definition of metal reactivity?
How easily a metal loses electrons to form positive ions.
In a displacement reaction, which metal replaces the other?
The more reactive metal replaces the less reactive metal.
Define "Decomposition" in chemistry.
The breaking of bonds in a substance by heat to form new chemical compounds.
What is the product of 2Cu(s) + O2(g)?
CuO(s)- (Copper Oxide)
True or False: Metals at the bottom of the series lose electrons easily.
False (they lose them less easily)
Where do you find the most reactive metals on the Reactivity Series?
At the top.
Predict the result: Cu(s) + FeSO4(aq) goes to ?
No reaction (because Copper is lower in the reactivity series than Iron)
What happens to the ease of decomposition as you go down the reactivity series?
The ease of decomposition increases
Complete the thermal decomposition of Calcium Hydroxide: Ca(OH)2(s) goes to ?
CaO(s) + H2O(g)=(Calcium oxide and steam)
Which metal is more reactive: Iron or Copper?
Iron
What type of compound is formed when a metal reacts with oxygen?
An ionic compound known as a metal oxide.
Why does Zinc displace Copper from a Copper Sulfate solution?
Zinc is more reactive than copper and loses electrons more easily to form ions.
Which two metals have hydroxides and carbonates that are stable and do not decompose?
Potassium and Sodium
Sodium Nitrate decomposes slightly when heated. What does it form?
Sodium nitrite and oxygen
What gas is represented by "H2O (g)" in the decomposition of hydroxides?
Steam
List two metals that are at the very top of the reactivity series.
Potassium and Sodium
Complete this equation: Zn(s) + CuSO4(aq) goes to?
ZnSO4(aq) + Cu(s)
When Calcium Carbonate is heated, what two products are formed?
Calcium oxide and carbon dioxide
What three products are formed when Magnesium Nitrate is heated?
Magnesium oxide, nitrogen dioxide, and oxygen.
Name a metal from the reactivity series that is lower than Iron but higher than Copper.
Lead
Why do metals at the top of the series react so easily?
Because they lose their electrons very easily.
Between Lead and Silver, which is higher on the reactivity series?
Lead
Which metal's hydroxide and carbonate are "too unstable to exist"
Silver
Write the decomposition equation for Silver Nitrate (2AgNO3)
2Ag(s) + 2NO2(g) + O2(g)
Why does a displacement reaction occur at the atomic level?
The more reactive metal loses electrons to form ions, pushing the less reactive metal out of the compound