One day, Siya’sscience teacher was demonstrating an experiment to her students in the lab where she took some sulphur powder and placed it inside a closed chamber. Through the inlet pipe, she allowed some oxygen gas into the chamber. The oxygen gas dissolved with the sulphur and formed another gas. i. Write the word equation for the above reaction.
ii. What type of oxide is formed as the product?
iii. State the colour of sulphur

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices