What is the molecular mass of Au

For the following, determine the type of reaction and then give products.

Which position represents spring in the southern hemisphere? a) b) c) d)

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