Calculate the volume of a liquid with a density of 5.45 g/ml and a mass of 65 g

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i. e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?