A mineral sample has a mass of 4.2 grams and a volume of 2 milliliters what is the density of the mineral?

Question 2: you have two systems: 1) solid gold and water 2) solid sodium and waterWhich one can spontaneously release energy and why?

Based on its chemical makeup, where do you think amazonite is found?

Particles which revolve around nucleus are called

Removing one electron from an atom results in the formation of an a. ion with a 1 + charge. b. ion with a 1 - charge. c. ion with a 7 + charge. d. ion with a 7 - charge.

Which statement about reversible reactions is correct?

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?

In which main energy level does the 's' sublevel first appear? K (first main energy level) L (second main energy level) M (third main energy level) N (fourth main energy level)