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* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
acid adhesion amino acids atom base capillary action carbohydrate catalyst cohesion compound covalent bond disaccharide electron element enzyme hydrogen bond ion ionic compound isomer lipid macromolecule metabolism mineral mixture molecule monomer monosaccharide neutron nucleic acid nucleotides periodic table ph polar compound polymer products protein proton reactants saturated fatty acids solute solution solvent suspension unsaturated fatty acids valence electrons vitamin 1. An ___________ is any substance that forms hydrogen atoms in water and has a pH below 7. 2. A _______________________________ is a weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms. 3. The _____________________________ is a table illustrating the periodic system, in which the chemical elements are shown in related groups. 4. _______________________ is the molecular force of attraction in the area of contact between unlike bodies that acts to hold them together. 5. An ___________ is an electrically charged atom or group of atoms that gain or lose electrons. 6. _________ is the measure of how acidic or base a solution is. (scale ranges from 0 to 14) 7. ______________________ are the basic building blocks of protein molecules. 8. An _____________________ is a chemical compound of cations and anions which are held together by ionic bonds in a lattice structure. 9. A ___________________________ a compound in which the electric charge is not symmetrically distributed, so that there is a separation of charge or partial charge. 10. An ____________ is the smallest particle of an element that has the characteristics of that element; the basic building block of all matter. 11. An ______________ is a compound with the same simple formula but different threedimensional structures resulting in different physical and chemical properties. 12. A _________________ is a large molecule formed when many smaller molecules bond together. 13. A ______________ is any substance that forms hydroxide ions in water and has a pH above 7. 14. A ______________ is a large organic compound made mostly of carbon and hydrogen with a small amount of oxygen. 15. A ____________________ is a substance obtained from another substance through chemical change. 16. ________________________ a manifestation of surface tension by which the portion of the surface of a liquid coming in contact with a solid is elevated or depressed, depending on the adhesive or cohesive properties of the liquid. 17. A _______________________ is a very large molecule composed of hundreds or thousands of atoms. 18. A _______________ is a large complex polymer essential to all life; composed of carbon, hydrogen, nitrogen, and sometimes sulfur; provides structure for tissues and organs and helps carry out cell metabolism. 19. A ____________________ is an organic compound used by cells to store and release energy. 20. ______________________ refers to all of the chemical reactions that occur within an organism. 21. A _______________ is a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron. 22. A ___________________ is a substance which alters the rate of a chemical reaction but is chemically unchanged at the end of the reaction. 23. A __________________ is an inorganic substance that is important for chemical reactions or as building materials in the body. 24. _____________________ are substances participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction. 25. ______________________ refers to the molecular force between particles within a body or substance that acts to unite them. 26. A _______________________ is a combination of substances in which the individual components retain their own properties. 27. _______________________________________ are long-chain carboxylic acids that usually have between 12 and 24 carbon atoms and have no double bonds. 28. A ______________________ is a substance composed of atoms of two or more different elements that are chemically combined. 29. A ______________________ is a group of atoms held together by covalent bonds; has no overall charge. 30. A _________________ is the substance being dissolved in a given solution. 31. A _________________________ is a chemical bond formed when two atoms share electrons. 32. A _________________ is a molecule of low molecular weight capable of reacting with identical or different molecules of low molecular weight to form a polymer. 33. A __________________ is a mixture in which one or more substances (solutes) are distributed evenly in another substance (solvent). 34. A _________________________ is any of a group of carbohydrates that yield monosaccharides on hydrolysis. 35. A ________________________ is a carbohydrate that does not hydrolyze, such as glucose, fructose, or ribose, occurring naturally or obtained by the hydrolysis of glycosides or polysaccharides. 36. A ______________ is a substance that dissolves another to form a solution. 37. An ________________ is an elementary particle that is a fundamental constituent of matter, has a negative charge and exists independently or as the component outside the nucleus of an atom. 38. A ___________________ is an elementary particle having no charge, has a mass slightly greater than that of a proton, and is a constituent of the nuclei of all atoms except those of hydrogen. 39. ________________________ refers to the state in which the particles of a substance are mixed with a fluid but are undissolved. 40. An _______________ is one of a class of substances that cannot be separated into simpler substances by chemical means. 41. ______________________________ is any of a group of long, linear macromolecules, either DNA or various types of RNA, that carry genetic information directing all cellular functions: composed of linked nucleotides. 42. ___________________________________ resemble saturated fatty acids, except that the chain has one or more double-bonds. 43. An _______________ is a type of protein found in all living things that changes the rate of chemical reactions. 44. ________________________ are any of a group of molecules that, when linked together, form the building blocks of DNA or RNA. 45. ____________________________ are electrons of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom. 46. A _________________ is an organic nutrient required in small amounts to maintain growth and metabolism.