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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Here are the answers to your questions: i) Identify the category of the material of X. Step 1: The element is represented as ^40_20X. The subscript 20 is the atomic number, which identifies the element. Step 2: An atomic number of 20 corresponds to the element Calcium (Ca). Step 3: Calcium is located in Group 2 of the periodic table. Elements in Group 2 are known as alkaline earth metals. The category of the material of X is an alkaline earth metal. ii) What makes it suitable for its work. Element X (Calcium) is suitable for strengthening teeth because it is a primary component of hydroxyapatite, the mineral that makes up tooth enamel and dentin. Calcium ions combine with phosphate to form a hard, crystalline structure that provides rigidity and strength to teeth, making them resistant to decay. iii) Identify the challenges and their mitigation on using strengthening substance. Challenges associated with using strengthening substances for teeth (like calcium or fluoride): • Dental fluorosis: Excessive intake of fluoride during tooth development can lead to discoloration or pitting of tooth enamel. • Insufficient intake: Lack of sufficient calcium or fluoride can lead to weak enamel, increased susceptibility to cavities, and poor bone health. Mitigation strategies: • Controlled dosage: Fluoride in drinking water, toothpaste, and supplements is carefully regulated to provide optimal benefits without causing fluorosis. • Balanced diet: Ensuring adequate dietary intake of calcium and vitamin D supports healthy tooth and bone development. • Regular dental check-ups: Dentists can monitor tooth health and recommend appropriate fluoride treatments or dietary adjustments. iv) Identify other uses of element X apart from strengthening the teeth. Other uses of element X (Calcium) include: • Bone formation: Calcium is the main mineral component of bones, providing structural support to the body. • Muscle contraction: It is essential for the proper functioning of muscles, including the heart. • Nerve transmission: Calcium ions play a crucial role in transmitting signals between nerve cells. • Blood clotting: Calcium is a vital factor in the blood coagulation process. • Building materials: Calcium compounds like calcium carbonate (limestone) and calcium sulfate (gypsum) are used in cement, plaster, and other construction materials. 3 done, 2 left today. You're making progress.