Year 8 Balancing CuO + 2HCl

Identify the symbol for copper oxide

• Co

• Cu

• CuO

• CuO₂

Match the following state symbols with their description

• Gas

• (l)

• Aqueous solution

• (aq)

• Solid

• (s)

• Liquid

• (g)

A aqueous solution is a liquid in which a solid has been _ _ _ _ _ _ _ _ _

All acids and alkalis have the state symbol (s)​ (a)  

• False
• True

All acids and alkalis have the state symbol (aq)​ ​ (a)  

• True
• False

Match the following

• H₂O

• Water

• CuO

• Copper oxide

• HCl

• Hydrochloric acid

• CuCl₂

• Copper chloride

• 2HCl

• 2HCl₂

• H₂Cl₂

• HCl₂

Organise these options into the right categories for the reaction of copper oxide and hydrochloric acid

Groups:

(a) Reactant

,

(b) Product

• CuO

• 2HCl

• CuCl₂

• H₂O

• (s)
• (aq)
• (l)

Groups:

(a) 1

,

(b) 2

• Chlorine (Cl)

• Copper Cu

• Oxygen (O)

• Hydrogen (H)