Describe the differences between Venus’ atmosphere and Earth’s atmosphere. Give three differences.
Describe how to test for carbon dioxide. test result
Water is a covalent compound. Complete the diagram so that it shows the electron arrangement in a water molecule and the symbols of the atoms present. Show only outer-shell electrons.
What physical state is argon in at $-200^{\circ}\text{C}$? Explain your answer.
Argon is unreactive. Explain why argon is unreactive in terms of its electronic structure.
Write the word equation for this reaction.
Calculate the relative molecular mass of sulfuric acid, $\text{H}_2\text{SO}_4$. Use your Periodic Table if needed.
State one application of sulfur dioxide.
Which one of these pH values is acidic? Draw a circle round the correct choice. pH 2 pH 7 pH 9 pH 14