Chem revievw 3 Crossword
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
                                 
 
 
Down: 1) - steel that is heated to an appropriate temperature for a short period of time and then cooled slowly to give it properties of both hardened and annealed steel.2) a measure of the concentration of hydrogen (H+ ) ions in a solution. Acidic solutions have a pH less than 7. Basic solutions have a pH greater than 7. A neutral solution has a pH of 7.4) a mixture of various acid-base indicators that give color changes over a wide range of pH values.5) an atom or molecule that has acquired a charge by either gaining or losing electron(s). Anions are negative ions that gained electron(s). Cations are positive ions that lost electron(s).7) steel that contains fewer carbon atoms between the iron atoms and is a softer, more malleable, and more pliable (flexible) steel. It is formed as iron is slowly cooled.10) process by which compounds separate into smaller particles, usually ions, in water.11) the rule that states that atoms tend to gain or lose electrons during chemical reactions so that the atoms have an outer shell configuration of eight electrons.12) the number equal to the number of carbon atoms in exactly 12 g of pure 12C.13) - a compound that has water bonded to it.15) an ion that has a positive charge. Across: 3) a hydrogen atom that has lost its electron, sometimes referred to as a proton. Acids release hydrogen ions (H+).6) the electrons of an atom that are located in the outermost energy level and are involved in chemical reactions.8) a compound that does not have any water bonded to it.9) a hard and brittle type of steel that results when steel is cooled quickly after being heated to red hot, causing the carbon atoms to be locked into the crystalline structure.14) - the property of a material to be hammered into various shapes without breaking.16) a substance that changes color when exposed to either an acid or a base.17) a model of the structure of metal that has valence electrons floating around the metal cations, appearing not to belong to any one cation.
 

 

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