The student let the water bath boil away, so the water level was much lower during the last determination. a large part of the flash was out of the water, and the upper part of the flask was noticeably cooler than the lower part. what effect would this error have on the calculated density and molecular weight? would these values be too high or too low? stay the same?

What substance has a mass of 9.5g and volume of 2.1cm^3

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m