Fossil fuels contain carbon and hydrogen. 1 (a) (i) Use the Chemistry Data Sheet to help you to answer this question. Complete Figure 1 to show the electronic structure of a carbon atom. [1 mark] Complete Figure 1 Figure 1 1 (a) (ii) Complete the word equation for the oxidation of hydrogen. hydrogen + oxygen -> ........................................................ [1 mark] 1 (b) Coal is a fossil fuel. Coal contains the elements hydrogen, sulfur, oxygen and carbon. Name two products of burning coal that have an impact on the environment. [4 marks] What impact does each of the products you named have on the environment?

GCSE AQA Chemistry Reactivity of Metals: Fossil fuels contain carbon and

Fossil fuels contain carbon and hydrogen - AQA - GCSE Chemistry - Question 1 - 2014 - Paper 1

Question 1

Fossil fuels contain carbon and hydrogen. 1 (a) (i) Use the Chemistry Data Sheet to help you to answer this question. Complete Figure 1 to show the electronic stru... show full transcript

Worked Solution & Example Answer:Fossil fuels contain carbon and hydrogen - AQA - GCSE Chemistry - Question 1 - 2014 - Paper 1

Step 1

1 (a) (i) Complete Figure 1 to show the electronic structure of a carbon atom

96%

114 rated

Answer

The electronic structure of a carbon atom can be drawn using dots to represent the electrons. Carbon has 6 electrons, which are arranged in two energy levels. The inner level contains 2 electrons, while the outer level contains 4 electrons:

      2e-
    ---------
   |         |
   |    •    |
   |    • • • • |
   ---------

In this diagram, dots represent the electrons in the shell of the carbon atom.

Step 2

1 (a) (ii) Complete the word equation for the oxidation of hydrogen

99%

104 rated

Answer

The word equation for the oxidation of hydrogen is:

hydrogen + oxygen → water

Step 3

1 (b) Name two products of burning coal that have an impact on the environment

96%

101 rated

Answer

Two products of burning coal that impact the environment are:

Carbon dioxide
Sulfur dioxide

Step 4

What impact does each of the products you named have on the environment?

98%

120 rated

Answer

Carbon dioxide: This gas contributes to global warming by enhancing the greenhouse effect. It traps heat in the atmosphere, leading to climate change and rising sea levels.
Sulfur dioxide: This gas can lead to the formation of acid rain, which negatively affects aquatic ecosystems, damages vegetation, and disrupts soil chemistry.

Fossil fuels contain carbon and hydrogen - AQA - GCSE Chemistry - Question 1 - 2014 - Paper 1

Worked Solution & Example Answer:Fossil fuels contain carbon and hydrogen - AQA - GCSE Chemistry - Question 1 - 2014 - Paper 1

1 (a) (i) Complete Figure 1 to show the electronic structure of a carbon atom

1 (a) (ii) Complete the word equation for the oxidation of hydrogen

1 (b) Name two products of burning coal that have an impact on the environment

What impact does each of the products you named have on the environment?

Join the GCSE students using SimpleStudy...