Cuando el oxígeno reacciona con el calcio produce un sólido blanco muy utilizado en la preparación de cementos. ¿Cuál de las siguientes reacciones describen el anterior proceso?

What three things determine the shape and size of a puddle when water is poured out onto a surface

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

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.