What is the atomic number

Express the concentration of a 0.0390 M aqueous solution of fluoride, F -, in mass percentage and in parts per million (ppm). Assume the density of the solution is 1.00 g/mL.

Which of the following questions can be answered by science? Are mind, body, and soul related to one another? Are physical and chemical changes a part of nature? Does studying science have better prospects than studying history?

A 01.0kg baseball is hit through a neighbors window. just before it hits the window, the ball has a kinetic energy of 200j. what was the balls velocity just before it hit the window?

Which of the following is an example of a compound? H2O Na Cl O

Write balanced equation with the correct states unless stated otherwise: solid titanium (IV) carbonate reacts with hydrochloric acid

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?