ôn tập 8I

An acid reacts with metal to produce 

• Carbon dioxide 
• Hydrogen gas
• Hydrogen gas and water 
• Salt and hydrogen gas 

Which salt will be produced if magnesium react with hydrochloric acid?

• Magnesium oxide
• Magnesium sulfate
• Magnesium sulfide
• Magnesium chloride

An acid reacts with metal to produce 

• Carbon dioxide 
• Hydrogen gas
• Hydrogen gas and water 
• Salt and hydrogen gas 

Zinc + sulfuric acid -->

• Zinc sulfide + hydrogen

• Zinc sulfate + hydrogen

• Zinc sulfate + Water +Carbon dioxide

• Zinc sulfide + water

Iron + hydrochloric acid -->

• Iron chloride + hydrogen

• Iron chloride + carbondioxide

• Iron hydroxide + acid

• Iron chloric + hydrogen

What gas is always produced when a metal reacts with water?

• Oxygen
• Carbon Dioxide
• Hydrogen
• Carbon Monoxide

Complete the word equation.

calcium + hydrochloric acid → ___ + ___

• carbon dioxide and water

• calcium chloride and oxygen

• calcium oxide and hydrogen

• calcium chloride and hydrogen

Which of the following metals are not react with oxygen, water and dilute acid?

• silver and lead

• silver and gold

• gold and lead

• lead and copper

Salts made from hydrochloric acid are called ...

• chlorides

• sulfates

• nitrates

• carbonates

Salts that are made with sulfuric acid are called ______________.

• chlorides
• sulfates
• nitrates
• carbonates