This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Here are the solutions to your questions: a) Give one example each of: i) Suspension An example of a suspension is muddy water. ii) Colloid An example of a colloid is milk. b) What is meant by an isoelectronic series? An isoelectronic series refers to a group of atoms or ions that all possess the same number of electrons. c) Define: i) Heat of formation The heat of formation is the enthalpy change when one mole of a compound is formed from its constituent elements in their standard states under standard conditions. ii) Heat of combustion The heat of combustion is the enthalpy change when one mole of a substance is completely burned in oxygen under standard conditions. d) Explain briefly why helium is more preferable to hydrogen as a rocket fuel. Helium is more preferable to hydrogen in certain rocket applications (e.g., as a pressurant) because helium is an inert gas, meaning it is non-flammable and non-explosive, making it much safer to handle and store compared to highly flammable and explosive hydrogen. e) Give the shapes of: i) CO_2 The shape of CO_2 is linear. ii) CH_4 The shape of CH_4 is tetrahedral. iii) NH_3 The shape of NH_3 is trigonal pyramidal. 3 done, 2 left today. You're making progress.