Group 2 Elements: Reactivity and Properties

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What is the product of the reaction between calcium and dilute hydrochloric acid?

Calcium chloride (correct)

Calcium sulfate

Calcium hydroxide

Calcium carbonate

Which acid is used to produce a metal sulfate?

Dilute hydrochloric acid

Dilute acetic acid

Dilute sulfuric acid (correct)

Dilute nitric acid

What is the purpose of calcium hydroxide in agriculture?

To decrease the pH of the soil

To fertilize the soil

To neutralise acid soils (correct)

To increase the pH of the soil

What is the ionic equation for the neutralisation of excess stomach acid?

H+ (aq) + OH- (aq) → H₂O Signup and view all the answers

What is the product of the reaction between magnesium and dilute sulfuric acid?

Magnesium sulfate Signup and view all the answers

What is the purpose of magnesium hydroxide in some indigestion tablets?

To neutralise excess stomach acid Signup and view all the answers

What is the general name for the group 2 elements?

Alkaline earth metals Signup and view all the answers

What is the product of the reaction between strontium and dilute hydrochloric acid?

Strontium chloride Signup and view all the answers

What is the purpose of calcium carbonate in some indigestion tablets?

To neutralise excess stomach acid Signup and view all the answers

What is the equation for the reaction between calcium and dilute hydrochloric acid?

Ca(s) + 2HCl(aq) → CaCl2(aq) + H2(g) Signup and view all the answers

What is the common outer electron configuration of the group 2 metals?

s² Signup and view all the answers

What is the charge of the ions formed when group 2 metals react?

+2 Signup and view all the answers

How do the reactivity of group 2 metals compare to group 1 metals?

They are less reactive Signup and view all the answers

What is the electron configuration of a calcium ion?

[2,8,8]²⁺ Signup and view all the answers

What happens to the outer electrons of group 2 metals when they react?

They lose an electron Signup and view all the answers

What is the common product of the reaction between a metal and water, and a metal and acid?

Hydrogen Signup and view all the answers

Which of the following reactions involves the formation of a metal oxide?

Metal + Oxygen Signup and view all the answers

What is the main reason for the decrease in first ionisation energy down Group 2?

Shielding increases Signup and view all the answers

What is the result of the reaction between a metal and water, in terms of the metal's oxidation state?

The metal is oxidized Signup and view all the answers

Which of the following trends is not observed in Group 2 elements?

Electronegativity decreases down the group Signup and view all the answers

What is the main consequence of the increase in atomic radius down Group 2?

Outer electrons are lost more easily Signup and view all the answers

What is the common reactant in all three reactions?

Metal Signup and view all the answers

Which reaction does not involve the formation of a compound containing hydrogen?

Metal + Oxygen Signup and view all the answers

Why do Group 2 elements exhibit increased reactivity down the group?

The outer electrons are lost more easily Signup and view all the answers

What is the relationship between atomic radius and first ionisation energy in Group 2 elements?

As atomic radius increases, first ionisation energy decreases Signup and view all the answers

Group 2 Elements: Reactivity and Properties

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