An object has a mass of 20 g and a volume of 5 ml what is the objects density

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

[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