The emission spectrum of gold shows a line of wavelength 2.76x10^-7m. what is the corresponding frequency of this light? how much energy is emitted in production of this radiation?

What does the cell nucleus do or, how does it function?

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted