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 the questions from the image: c) Metals vs Non-Metals: (i) Differentiation by appearance:* Metals* have a shiny, lustrous appearance. Non-metals* generally have a dull, non-reflective appearance (except iodine and graphite). (ii) Two uses of semi-metals (metalloids):* 1. Used as semiconductors in manufacturing electronic microchips, transistors, and solar cells (e.g., Silicon). 2. Used in making specialized alloys to improve thermal and chemical resistance. d) Crop Selection: (i) Definition of crop variety: A crop variety* is a specific group of cultivated plants within a single species that selected traits distinguish clearly from other varieties, which remain stable when propagated. (ii) Three factors to consider when selecting a suitable crop variety for cultivation:* 1. Climatic and ecological conditions of the area (rainfall, temperature). 2. Resistance of the variety to local pests and diseases. 3. Maturity period and potential yield of the variety. Question 3 b) Comparison between organic and inorganic compounds: (i) Melting point:* Organic Compounds: Generally low melting points*. Inorganic Compounds: Generally high melting points*. (ii) Boiling point:* Organic Compounds: Generally low boiling points*. Inorganic Compounds: Generally high boiling points*. (iii) Solubility in water:* Organic Compounds: Mostly insoluble in water* (soluble in organic solvents). Inorganic Compounds: Mostly soluble in water* (insoluble in organic solvents). (iv) Conductivity:* Organic Compounds: Non-conductors of electricity* (do not ionize). Inorganic Compounds: Good conductors* when molten or in aqueous solution. (v) Biodegradability:* Organic Compounds: Mostly biodegradable*. Inorganic Compounds: Generally non-biodegradable*. c) Explanation of terms in ruminants: (i) Gestation period: The period from successful conception/fertilization to the birth of the offspring (pregnancy duration*). (ii) Heat period: The period during the estrus cycle when the female ruminant is sexually receptive* to the male for mating. (iii) Parturition: The physiological act of giving birth* or bringing forth young ones at the end of the gestation period. What's next? Send 'em! 📸