In the above reaction, you begin with 0.974 grams of the starting material (30.03 g/mol). You obtain 0.504 grams of the product (70.09 g/mol). What is the percent yield of the reaction

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

answer: i dont know the answer but this might

explanation:

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c. orbital shape i hope this is correct

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.