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Unit 1 :, **Observation, inference, and hypotheses... …

- - - - Chemical compounds and bonds ---->
        
        chemical compound is a substance formed by the chemical combination of two or more elements
        
        chemical bonds are atoms which are in compounds and are held together with chemical bonds
        
        Acids, Bases, and Ph
        
        acid is a compound that releases hydrogen ions into a solution
        base is a compound that produces hydroxide ions in a solution
        
        ionic bond happens when one or more electrons are transferred from one atom to the other
      - an element is a pure substance that is made up of one entire atom.
        symbols to look for
        C is carbon, H is hydrogen, Na is sodium, and I is iodine
        the 6 main elements :explode: IMPORTANT
        carbon, hydrogen, oxygen, sulfur, phosphorus, and nitrogen