Calculate the mass of 1.5 moles of calcium atoms

What is the theoretical yield of carbon dioxide? a)0.993 gb)2.98 gc)3.65 gd)8.93 g

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

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