Which ion would have the following configuration? Zr2+
Br -
Se2+
Kr

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

Which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be x. the difference of z and y must be 2x. the difference of z and y must be x

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?