Căldura molară izobară a heliului este Cp =2,5 R. Care este căldura specifică izobară a heliului? Se cunoaște µHe =4g/mol. va ro

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

What you see with your eyes is a form of energy. a. light b. heat c. chemical d. electrical

Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). what’s the chemical formula of this substance?