Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol

=2.016 g/ mol

Explanation:

1 atom of hydrogen has an atomic mass of 1.008 g. Hydrogen molecule is made up of two atoms of hydrogen therefore, it has a mass of:

1.008 g × 2=2.016 g

1 mole of hydrogen gas contains the Avogadro's number of molecules.

Thus M =(L × 2.016g) =2.016g/mol

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.