The concentration of h+ ions in a solution is 1.0 × 10-11 m, what is the ph of the solution?

Select the atomic models that belong to the same element

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.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.