What is the most stable condition for an atom

The Red Sea is widening at a rate of 1.25 centimeters per year. How many years will it take to widen another 812.5 centimeters? A) 600 b) 650 C) 750 d) 800 E) 812

Give the expression for the solubility product constant for baf2.

Why didn't the older boy catch chickenpox again when his younger brother had it two years later

A natural sample of neon has a relative atomic mass of 20.2. What is the mass number of the most common type of atom in the sample of neon?

How is an electromagnet different from a bar magnet? A) Bar magnets have a north and south pole, but electromagnets do not. B) Electromagnets are strong, permanent magnets, but bar magnets are always weaker.

Which the following atoms will not react with water? a. K b. Li c. Pb d. Na

Fluorin is often added to drinking water and toothpaste

What larger energy does light energy come from?

Allows water to pass through easily

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles