Answer:



Explanation:
(a)
The balanced chemical equation for the reaction of methane with oxygen gas to form carbon dioxide and water is shown below as;

(b)
The balanced chemical equation for the reaction of butane with oxygen gas to form carbon dioxide and water is shown below as;

(c)
The balanced chemical equation for the reaction of solution of sulfuric acid reacts with aqueous potassium hydroxide to produce potassium sulfate and water is shown below as;

Answer:
Iron is oxidized to form rust.
Explanation:
Consider the reaction; 4Fe + 302------>2Fe2O3, we can see that iron is being oxidized to iron III oxide. Rust is the common name of iron III oxide.
Rusting is an electrochemical process, iron rusts when it comes into contact with air and water because electrochemical cells are set up at the surface of contact.
Iron usually functions as the anode in the electrochemical process. This process leads to the formation of iron III oxide. Rust is soft and breaks off easily thereby exposing the metal below the surface to further rusting.
Answer:
K^+(aq) + Br^-(aq) -----> KBr(aq)
Explanation:
The net ionic equation shows the actual reaction that occurs in the system. The molecular reaction equation includes the spectator ions but the net ionic equation does not include the spectator ions.
Spectator ions do not participate in the main reaction going on in the system.
Hence, for the reaction of potassium hydroxide and ammonium bromide, we have;
K^+(aq) + Br^-(aq) -----> KBr(aq)
Answer:
Some materials let electricity pass through them easily. These materials are known as electrical conductors. Many metals, such as copper, iron and steel, are good electrical conductors.
I hope it's helpful!