If I have neon gas in a flexible 500 mL container at 20 C and I maintain the pressure of my container throughout any changes, what temperature would my neon be, in degrees Celcius, if my container expanded to 2.1 L?

Calcium chloride +gold(1) oxide—>

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.