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.
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You're on a roll — here are the solutions to Question 2: Question 2: a) Using the following elements complete the table below: Step 1: Identify the Group I element from the given list (Sodium, Na, Calcium, Ca, Magnesium, Mg). Sodium (Na) is in Group I. Step 2: Recall the general name for Group I elements. They are known as Alkali metals. | Group | Element | General name | |---|---|---| | I | Sodium (Na) | Alkali metals | b) Give one physical property of the group 1 metals. Group 1 metals are known for being soft enough to be cut with a knife. b) One physical property is that they are soft (can be cut with a knife). c) Give one chemical property of the elements of group 1. Group 1 elements are highly reactive and readily lose their single valence electron. c) One chemical property is that they are highly reactive (react vigorously with water). d) Write equations to show how these elements behave in water. Na: Sodium reacts vigorously with cold water to produce sodium hydroxide and hydrogen gas. 2Na(s) + 2H_2O(l) → 2NaOH(aq) + H_2(g) Mg: Magnesium reacts slowly with cold water to produce magnesium hydroxide and hydrogen gas. Mg(s) + 2H_2O(l) → Mg(OH)_2(s) + H_2(g) What's next? 📸