What is the electron configuration for the barium ion (Ba2+) ?

What's a polyatomic ion?

The volume of a fixed mass of a liquid sample increases as the temperature rises from 20 to 40˚c. does the density increase, decrease, or stay the same? explain your answer.

Explain the basic principles of a distillation unit operation

A solution contains 0.021 M Cl? and 0.017 M I?. A solution containing copper (I) ions is added to selectively precipitate one of the ions.

What will a nonmetal do when it combines with a metal atom

When comparing the two elements P and I, the element with the higher first ionization energy is PP When comparing the two elements P and I, the element with the higher first ionization energy is blank based on periodic trends alone.

Internal respiration is the transfer of oxygen and carbon dioxide from the lungs to the tissue cells of the body. True or False

Which element is a metalloid? 1. Al 2. Ar 3. As 4. Aa

You move a 25N object 4 meters. Find the work you did

What is the relationship between matter and elements