Decomposition of Mercury(I) Carbonate

The video tutorial explains how to write and balance the chemical equation for the decomposition of mercury(I) carbonate (Hg2CO3). It identifies the reaction as both a decomposition and a redox reaction due to changes in oxidation states. The tutorial walks through balancing the equation, ensuring the number of atoms for each element is equal on both sides. It also discusses the states of matter for the products, which include liquid mercury, solid mercury(II) oxide, and carbon dioxide gas. The video concludes with a recap of the balanced equation and the reaction type.

What is the chemical formula for mercury(I) carbonate?

• HgCO

• Hg2C

• HgCO3

• Hg2CO3

What type of reaction is the decomposition of mercury(I) carbonate?

• Double Replacement

• Single Replacement

• Decomposition

• Synthesis

In a redox reaction, what changes occur?

• Pressure

• Oxidation states

• Temperature

• Volume

How many mercury atoms are present on each side of the balanced equation for Hg2CO3 decomposition?

• One

• Four

• Two

• Three

What are the coefficients for the balanced equation of Hg2CO3 decomposition?

• 1, 2, 1, 3

• 2, 1, 2, 1

• 1, 1, 1, 1

• 2, 2, 1, 1

What is the state of mercury metal after the decomposition of Hg2CO3?

• Gas

• Solid

• Liquid

• Aqueous

Which product of the Hg2CO3 decomposition is a gas?

• Mercury metal

• Mercury(II) oxide

• Carbon dioxide

• Carbon monoxide

What condition is likely needed for the decomposition of Hg2CO3 to occur?

• Cooling

• Heating

• Adding water

• Increasing pressure