HELP!! CaCO3(s) + 2HCl(aq) CaCl2(aq) + H2O( ) + CO2

(g)

What is the total number of moles of CO2 formed

when 20. moles of HCl is completely consumed?

A) 5.0 mol B) 10. mol

C) 20. mol D) 40. mol

In which phase(s) do the molecules take the shape of the container?

Which metal exist in liquid state and can be cut with knife ?

[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