Cantidad de protones ,electrones ,neutrones en el Magnesio

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

Which of these is a physical property

Which statement best describes the liquid state of matter? a. it has definite shape but indefinite volume. b. it has definite shape and definite volume. c. it has indefinite shape and indefinite volume. d. it has indefinite shape but definite volume.