Law of multiple proportion for hydrazine, ammonia and hydrogen acide

How many neutrons does a atom of cobalt have?

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

Which of the following is not true about the atomic model of substances?