When 120 g of carbon reacts completely with 320 g of oxygen the mass of carbon dioxide formed will be?

Which statement is best described as a atom

Using the periodic table, complete the table to describe each atom. type in your answers

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