Tomatoes do not taste chemically. The taste of tomatoes is a result of the natural compounds present in the fruit, such as sugars, acids, and volatile compounds. These compounds contribute to the sweet, tangy, and savory flavor of tomatoes. While tomatoes may be treated with chemicals during cultivation, the taste of the fruit itself is not chemically derived. **

Tartar, also known as dental calculus, forms chemically through a process called mineralization. This occurs when plaque, a sticky film of bacteria and food particles, is not removed from the teeth and hardens into tartar. The minerals in saliva, such as calcium and phosphate, combine with the bacteria and food particles in the plaque to form a hard, yellowish deposit on the teeth. Once tartar has formed, it can only be removed by a dental professional using specialized tools. **

No, not all wool is chemically treated. Some wool is processed using environmentally friendly methods that do not involve chemical treatments. However, some wool may undergo chemical treatments to achieve certain properties such as softness, colorfastness, or resistance to shrinking. It is important to check the label or inquire with the manufacturer to determine if the wool has been chemically treated. **

Glass shatters chemically because of the way its molecular structure responds to stress. Glass is an amorphous solid, meaning its molecules are not arranged in a regular pattern like in a crystalline solid. When stress is applied to glass, the disordered molecular structure makes it more susceptible to breaking. Additionally, the presence of microscopic flaws or impurities in the glass can also contribute to its tendency to shatter when subjected to force. **

TV and radio stations are not legally obligated to broadcast news, but many choose to do so as part of their commitment to serving the public interest. In some countries, there may be regulations or licensing requirements that mandate a certain amount of news programming, but this varies by jurisdiction. Ultimately, the decision to include news in their programming is up to the individual stations and their management. **

Water can be chemically heated through a process called exothermic reactions. This involves mixing two or more substances that react with each other and release heat as a byproduct. For example, mixing calcium oxide with water produces calcium hydroxide and releases a significant amount of heat. Another method is through the use of chemical heating pads, which contain iron powder and water. When the iron powder reacts with the water, it produces heat as a result of the chemical reaction. **

The chemical smell in the ground can be due to various factors such as the presence of natural gases like methane or sulfur compounds, industrial pollution, or the release of volatile organic compounds from decomposing organic matter. Additionally, certain types of soil and rocks can emit odors due to the presence of minerals and compounds. It is important to identify the source of the chemical smell to determine if it poses any health or environmental risks. **

Chemically, energy can be stored in the form of chemical bonds within molecules. When these bonds are broken, energy is released, and when new bonds are formed, energy is absorbed. This can be seen in processes such as photosynthesis, where energy from sunlight is used to convert carbon dioxide and water into glucose, storing the energy in the chemical bonds of the glucose molecule. Overall, energy in chemical form is represented by the potential for molecules to undergo reactions and release or absorb energy in the process. **