What shape has 4 bonding pairs and 0 lone pairs?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

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.