29 Questions
What is the product of the reaction between calcium and dilute hydrochloric acid?
Calcium chloride
Which acid is used to produce a metal sulfate?
Dilute sulfuric acid
What is the purpose of calcium hydroxide in agriculture?
To neutralise acid soils
What is the ionic equation for the neutralisation of excess stomach acid?
H+ (aq) + OH- (aq) → H₂O
What is the product of the reaction between magnesium and dilute sulfuric acid?
Magnesium sulfate
What is the purpose of magnesium hydroxide in some indigestion tablets?
To neutralise excess stomach acid
What is the general name for the group 2 elements?
Alkaline earth metals
What is the product of the reaction between strontium and dilute hydrochloric acid?
Strontium chloride
What is the purpose of calcium carbonate in some indigestion tablets?
To neutralise excess stomach acid
What is the equation for the reaction between calcium and dilute hydrochloric acid?
Ca(s) + 2HCl(aq) → CaCl2(aq) + H2(g)
What is the common outer electron configuration of the group 2 metals?
s²
What is the charge of the ions formed when group 2 metals react?
+2
How do the reactivity of group 2 metals compare to group 1 metals?
They are less reactive
What is the electron configuration of a calcium ion?
[2,8,8]²⁺
What happens to the outer electrons of group 2 metals when they react?
They lose an electron
What is the common product of the reaction between a metal and water, and a metal and acid?
Hydrogen
Which of the following reactions involves the formation of a metal oxide?
Metal + Oxygen
What is the main reason for the decrease in first ionisation energy down Group 2?
Shielding increases
What is the result of the reaction between a metal and water, in terms of the metal's oxidation state?
The metal is oxidized
Which of the following trends is not observed in Group 2 elements?
Electronegativity decreases down the group
What is the main consequence of the increase in atomic radius down Group 2?
Outer electrons are lost more easily
What is the common reactant in all three reactions?
Metal
Which reaction does not involve the formation of a compound containing hydrogen?
Metal + Oxygen
Why do Group 2 elements exhibit increased reactivity down the group?
The outer electrons are lost more easily
What is the relationship between atomic radius and first ionisation energy in Group 2 elements?
As atomic radius increases, first ionisation energy decreases
What is the trend in the reactivity of the alkaline earth metals across Period 3?
It increases
Which of the following elements is most reactive?
Mg
What is the oxidation state of the alkaline earth metals in their compounds?
+2
Which element is a metalloid?
P
This quiz covers the reactivity of Group 2 elements with water, including magnesium, calcium, and barium, as well as their ionization energies and burning properties in air.
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