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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The image contains two questions. The first, a chemistry question, is incomplete as the chemical reaction is not provided. The second is a mathematics question. For the mathematics question: The dimensions of the rectangular floor are 12 m by 20 m. To cover the floor with square tiles of maximum size, the side length of the tile must be the greatest common divisor (GCD) of the floor's dimensions. Step 1: Find the prime factorization of each dimension. 12 = 2 × 2 × 3 = 2^2 × 3 20 = 2 × 2 × 5 = 2^2 × 5 Step 2: Determine the greatest common divisor (GCD). The common prime factors are 2^2. GCD(12, 20) = 2^2 = 4 The side length of the maximum size square tile is 4 m. The question is cut off, but assuming it asks for the side length of the maximum size tile: The side length of the maximum size square tile is 4 m. Regarding the chemistry question "(b) write a net ionic equation for the chemical reaction", the chemical reaction itself is not provided in the image, so a net ionic equation cannot be written. Send me the next one 📸