You are given an irregularly shaped lump of a material and determine that it has a mass of 32.7001 g. When placed in a graduated cylinder that initially contains 24.00 mL of water, the water level rises to 28.55 mL. What is the density of the unknown material

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

What is the mass of 0.46 mil of mgcl2

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?