What is true of acids? a. they are poor electrolytes. b. they have a ph above 9. c. they have a ph below 7. d. they have a strong affinity for h ions.

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation