Substance example sentences



Actually, chemical reactions involve the breaking and making of bonds between atoms to produce new substances.But if a system at equilibrium is subjected to a change in the concentration of one or more of the reacting substances, then the system is no longer at equilibrium; and net reaction takes place in some direction until the system returns to equilibrium once again.According to Brönsted-Lowry theory, acid is a substance that is capable of donating a hydrogen ion H+ and bases are substances capable of accepting a hydrogen ion, H+.A combustible substance is burnt in pure dioxygen supplied in the steel bomb.Manure is an organic substance obtained from the decomposition of plant or animal wastes.What are the other substances which, when dissolved in distilled water, make it conducting? Let us find out.On the basis of this observation, what do you think about the nature of the greasy substance? You are correct if you say that grease (mixture of higher alkanes) is non-polar and, hence, hydrophobic in nature.Do you know where the smoke could have come from? Addition of such substances to the atmosphere modifies it.Addictive behaviour, whether it involves excessive intake of high calorie food resulting in extreme obesity or involving the abuse of substances such as alcohol or cocaine, is one of the most severe problems being faced by society today.A naturally occurring substance that has a definite chemical composition is a mineral.The mode of nutrition in which organisms make food themselves from simple substances is called autotrophic (auto = self; trophos = nourishment) nutrition.Have you ever observed while bathing that foam is formed with difficulty and an insoluble substance (scum) remains after washing with water? This is caused by the reaction of soap with the calcium and magnesium salts, which cause the hardness of water.Fresh water is therefore, the most precious substance on earth.Metals are hard substances that conduct heat and electricity and have a characteristic lustre or shine.If a substance loses oxygen or gains hydrogen during a reaction, it is reduced.

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