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 is the classification of each change: a) Burning a Paper: Chemical change (new substances like ash and smoke are formed). b) Folding a Paper: Physical change (only the shape of the paper changes, no new substance is formed). c) Photosynthesis: Chemical change (carbon dioxide and water are converted into glucose and oxygen). d) Cooking an egg: Chemical change (proteins in the egg undergo denaturation, forming new substances). e) Milk to curd: Chemical change (lactose in milk is converted to lactic acid, causing milk proteins to coagulate). f) Melting of ice: Physical change (ice changes from solid to liquid water, but it is still water). g) Boiling of Petroleum: Physical change (petroleum components are separated by boiling point, but no new substances are formed). h) Fruits Ripening: Chemical change (complex carbohydrates break down into simpler sugars, and other chemical reactions occur).