unit 4 Word Scramble
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Question | Answer |
chemical equation | The way of expressing the chemical reaction of two or more compounds. |
chemical formula | The way of expressing the atoms in a compound. |
inorganic compounds | Compounds without carbon. |
organic compounds | Compounds that contain carbon. |
nonpolar bonds | A nonpolar bond is a covalent bond between two nonmetal atoms where the electrons forming the bond are equally distributed. Therefore, the molecule has a zero charge. |
polar bond | A polar bond is a covalent bond between two nonmetal atoms where the electrons forming the bond are unequally distributed. Therefore, one part of molecule is positive and the other negative. Ex. water |
molecular compound | A compound with covalent bonds. Same as a covalent compound. |
diatomic elements | The elements ending with "-gen" including halogens form diatomic molecules. |
covalent bonds | sharing electrons |
ionic bonds | gaining or losing electrons |
valence electron | electrons on the outer rim |
isotope | each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons |
ion | an atom or molecule with a net electric charge due to the loss or gain of one or more electrons |
reacants | a substance that takes part in and undergoes change during a reaction. |
products | an article or substance that is manufactured or refined for sale: |
coefficients | a multiplier or factor that measures some property: |
exothermic reaction | Exothermic reactions give off heat (product). It gives off heat to its surrounding (the water). The extra heat makes the solution hotter and so temperature goes UP. |
endothermic reaction | Endothermic reactions require heat to proceed. The heat that they use up comes from the solution. Since heat is being used up, the temperature drops. |
acid | a molecule or other entity that can donate a proton or accept an electron pair in reactions. |
base | have as the foundation for (something); use as a point from which (something) can develop: |
pH scale | The pH scale measures how acidic or basic a substance is. |
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