Chemistry 5070/21 — October/November 2015
Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme
Topics Stoichiometry · Atoms, Elements and Compounds · Chemical Reactions · Chemistry of the Environment · Experimental Techniques and Chemical Analysis · Acids, Bases and Salts · +6 more
Choose from the following gases to answer the questions below.
ammonia
argon
carbon dioxide
chlorine
ethane
ethene
nitrogen
nitrogen(II) oxide
oxygen
sulfur dioxide
Each of these gases can be used once, more than once or not at all.
Which gas
forms approximately 1% of the air,
______
bleaches damp litmus paper,
______
reacts with water to form an alkaline solution,
______
can undergo polymerisation,
______
is a compound formed in the atmosphere as a result of lightning activity,
______
is a diatomic molecule containing a total of 16 electrons?
______
The rest of this paper
9 more questions- Q2Atoms, Elements and Compounds · Organic Chemistry · Stoichiometry · Chemistry of the Environment11M
- Q3Chemistry of the Environment · Chemical Reactions6M
- Q4Atoms, Elements and Compounds · Stoichiometry · Experimental Techniques and Chemical Analysis · Chemical Reactions10M
- Q5States of Matter5M
- Q6Stoichiometry · Chemical Energetics · Experimental Techniques and Chemical Analysis · Acids, Bases and Salts7M
- Q7Atoms, Elements and Compounds · Electrochemistry · Stoichiometry10M
- Q8Stoichiometry · Metals · Chemical Reactions · Atoms, Elements and Compounds10M
- Q9States of Matter · Organic Chemistry · Stoichiometry · Acids, Bases and Salts10M
- Q10Chemical Reactions · The Periodic Table10M