The hydroxide ion concentration in an aqueous solution at 25°C is 7.0x10^-2 M. The hydronium ion concentration is ___ M.
The pH of this solution is ___
The pOH is __

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.