Why does magnesium donate two electrons to oxygen in order to form magnesium oxide (MgO)?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

How do you lengthen a pattern piece? (family and consumer science, sewing)

Which of the following words describe the reality that the universe looks the same from various perspective