yes some chemical reactions are harmful to us. as digestion of food, photosynthesis, decomposition of organic waste are some examples of the useful chemical reactions.
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
Chemical reactions are described based on observations. It may be in terms of changes in color, state of matter, or density.
The three types of chemical reactions are: synthesis, decomposition, and replacement.
Metabolism and/or catabolism.
Chemical Change
4 useful chemical reactions are: fermentation, smelting combustion and electrolysis
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Chemical engineering entails the construction, design and the operation of plants and machines that perform the chemical reactions to make useful products.
Cellular respiration
These are not chemical reactions but thermonuclear reactions.
They help to speed up the chemical reactions in everything, causing functions to happen quickly
Radiotracers have the same chemical properties to the stable isotopes of an element.
Chemical reactions are abbreviated by their chemical equations.
Equation coefficients show the number of molecules involved in a chemical reaction.
enzymes helps control chemical reactions by the chemical in it called collagen when enzymes enter your body they create a chemical reactions and controls the chemical reactions you get by eating too much acids.
Not ALL reactions are chemicals. When chemicals reacte with other chemicals it is called as chemical reactions.
Chemical reactions are chemical processes.