Un ejemplo de cambio químico es, cuando encendemos una vela y la la parafina se derrite con el calor. Cierto o falso

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull