A sample of gaseous oxygen is heated with an electrical coil. If 230. J is added to a 13.8-gram sample and the final temperature is 38.6°C, calculate the initial temperature of the oxygen.
°C.

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

The blackbody curve for a star name zeta is shown below. what is the peak wavelength for this star ?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone, due to its high light availability and warm water temperature