Inside a fuel cell, hydrogen is converted into H+ ions. These ions combine with oxygen to produce energy for the car and water as exhaust. Describe how the fuel cell obeys the law of conservation of mass.

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

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

What’s the theoretical yield of solid lead