How many atoms of carbon are present in 30 g of a compound that is 42.8% carbon by weight?
answer in units of Atoms

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color