How many hydrogen atoms are in 2 mol of H2O?

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane

Avariable that is not being directly tested during an experiment should be