Reactivity series, alloys, galvanising, properties of metals and non-metals, refox, oxidation, balancing equations

Which of these elements are unlikely to be found uncombined in the earth's crust?

• gold

• potassium

• aluminium

• silver

Which of these objects are manufactured from metals?

• 
• 
• 
• 
• 

Which table below correctly lists the properties of metals and nonmetals? *

• A
• B
• C
• D

When aluminium oxide react with carbon, there is no change that will occur. What is your inference for this observation?

• Carbon cannot remove the oxygen from the aluminium oxide

• Carbon is less reactive than aluminium

• Aluminium is more reactive than carbon

• All of the above

The table shows the properties of four elements. Which element in the table is classified as a metal?

• Manganese
• Sulfur
• Silicon
• Neon

Based on the following diagram, what is the function of potassium manganate (VII) crystals in this experiment?

• To supply oxygen

• To avoid the metals to mix with each other

• To release heat

• To give out water vapour

The position of a metal in the reactivity series of metals depends on the reactivity of the metal when reacting with ....

• Carbon

• Hydrogen

• Oxygen

• Sulphur

The diagram shows a setup apparatus for an experiment. What is the aim of the experiment?

• To determine the position of carbon in the reactivity series of metals

• To determine the position of hydrogen in the reactivity series of metals

• To observe the reactivity of metals with carbon dioxide

• To observe the reactivity of metals with water

Complete the word equation below.

Zinc oxide + carbon --> ..........

• Zinc + carbon

• Zinc oxide + carbon

• Zinc + carbon dioxide

• No change

What is the name of the process that uses electricity to separate the elements in a compound?

• reduction

• electrolysis

• extraction

• mining