This question is about chemical reactions with oxygen. 
When carbon burns in oxygen gas, carbon dioxide gas is produced. 

Write the word equation for the reaction: 
______       +     _____      $\to$      _____

 

This question is about chemical reactions with oxygen.  

When magnesium is oxidised, a white solid is formed. 
Predict how the mass of magnesium will change during the reaction. 
Give a reason for your answer.

The table lists the melting points of four unknown substances:  

Which unknown substances are non-metals? 
 

The table lists the melting points of four unknown substances:     

Name three properties that unknown substance A is likely to have.

Priya and Gabriella are comparing different metals. 
The first property they investigated was density. They measured the mass of different cubes of metal. Each cube was the same volume. 

Here are their results:

Write down two things that the girls have learned about the density of metals.