Chemical Formulas and Equations 8.5D recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing substances; 8.5F recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass
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Chemical Formulas and Equations · Chemical Formulas and Equations 8.5D recognize that chemical formulas are used to identify substances and determine the ... Chemical Compounds
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Chemical Formulas and Equations
8.5D recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing substances; 8.5F
recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass
Chemical Compounds
Chemists have identified over 10 million chemical compounds
Some are molecular – like the proteins and hormones in your body
Some are ionic compounds – such as the salts in your body fluids
A chemical formula shows the kinds and numbers of atoms in the smallest representative unit of the substance (recall this from the last lesson?)
Formulas
H2O shows that a water molecule has 2 hydrogen and 1 oxygen atom