Give 10 examples for laws of conservation of mass
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1. When you burn charcoal, there are products that are formed due to this burning, which are soot, ashes, heat, and various types of gases. Now these products of combustion are directly proportional to the raw material or the charcoal which was burned, in such a way that the charcoal turns into all the products, keeping the mass constant. However, there is a slight production of energy, when mass is transformed, in this case, being heat energy. But these changes are very minute and can't be detected easily, thus considered.
In this example, we will discuss a very basic chemical reaction between 1 molecule of Hydrogen with 1½ molecule of Oxygen. When these two molecules react under heat, they give one molecule of water (H2O). The molecular weight of 2.Hydrogen is 2 and that of Oxygen is 8, which when mixed produces 10 units, which is the molecular weight of the water molecule. Therefore, in chemistry, the mass of the substrates are kept constant in the products.
3.Fire. Burning. If you set a piece of paper on fire it appears to turn into maybe a small pile of ash, nowhere near the mass of the paper before. While you can't see the rest it is certainly there. The white powder left after burning is everything in the paper that was not consumed in the combustion reaction. This is a reaction that takes hydrocarbons and oxygen to create carbon dioxide and water vapor. When you burn the paper, almost all of the molecules are torn apart and turned to gas.
In this example, we will discuss a very basic chemical reaction between 1 molecule of Hydrogen with 1½ molecule of Oxygen. When these two molecules react under heat, they give one molecule of water (H2O). The molecular weight of 2.Hydrogen is 2 and that of Oxygen is 8, which when mixed produces 10 units, which is the molecular weight of the water molecule. Therefore, in chemistry, the mass of the substrates are kept constant in the products.
3.Fire. Burning. If you set a piece of paper on fire it appears to turn into maybe a small pile of ash, nowhere near the mass of the paper before. While you can't see the rest it is certainly there. The white powder left after burning is everything in the paper that was not consumed in the combustion reaction. This is a reaction that takes hydrocarbons and oxygen to create carbon dioxide and water vapor. When you burn the paper, almost all of the molecules are torn apart and turned to gas.
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