Chemical Reactions
6 past-paper questions on Chemical Reactions · examined 2018–2023.
20231 question
Complete the word equation for this reaction. (1) lead nitrate + ..................................................................................... → ..................................................................................... + lead chloride
20185 questions
Ammonia can be manufactured by the Haber process. The word equation for the reaction is nitrogen + hydrogen U ammonia State the meaning of the symbol.
Ammonia reacts with nitric acid to form ammonium nitrate. Complete the word equation for this reaction.
When burnt completely in air, butene forms carbon dioxide and water. Balance the equation for this reaction by putting numbers in the spaces provided. C 4 H 8 + 6O 2 o ................ CO 2 + ................ H 2 O
Give the name of the white precipitate formed by the reaction of barium chloride solution with dilute sulfuric acid.
Hydrogen burns in air at a temperature well above 100 °C to form water. The boiling points of hydrogen and water are shown in Figure 15. boiling point in °C hydrogen –253 water 100 Figure 15 Use this information to add the missing state symbols to the equation for the reaction taking place as the hydrogen burns. 2H2 (...............) + O2 (g) o 2H2O(...............)
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