Calculate the grams of water needed to react completely with 2.0 moles of calcium causing the reaction below

1 Ca + 2 H20 ➡ 1 Ca(OH)2 + 1 H2

Easy definition for atom and atomic mass

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

What does the cell nucleus do or, how does it function?