Calcium fluoride is 48.7% fluorine by mass. How many grams of calcium fluoride would contain 6.34 grams of fluorine?

What form of oxygen is not toxic to microorganism is it oh-?

Select the supplements that are minerals. beta-carotene calcium chloride folic acid iron lipids sodium zinc

The average daily diet of an adult woman is 2.4*103kcal. the molar mass of atp is 507 g/mole. part a if all the energy in her diet is converted to atp, how many kg of atp are synthesized in one day?

If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y-:X:-Y could be abbreviated as XY2Z2. Classify these structures according to their shape.

What is global warming? a) a recent increase in the average global temperature near Earth's surface b) a period of time when temperatures across the planet are colder than normal c) a characteristic of summer that returns seasonally d) the gain of

How are real gases different from ideal gases?

Which one doesnt belong in the list below? A. a meter B. one liter C. One centimeter D. one kilometer

Which elements did curies discover

When rubidium metal is exposed to air, two atoms of rubidium, Rb, combine with one atom of oxygen. If 1.98 grams of rubidium is exposed to air, what will be the mass of the product in grams

Fission reactions can get of of control without what taking place?