A ray of sunlight has a frequency of 4.5 x 1014 Hz. What is the wavelength of the light?

Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?

What is the correct name for hg(no3)2? mercury (i) nitrate mercury (ii) nitrate mercury nitroxide mercury dinitride