Tetrachloromethane consists of 10.05% of carbon, 0.83% of hydrogen and 89.12% of chlorine. It's relative molecular mass is 119.5. Calculate its molecular formula

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

What produces wave a)sound b) heats c)transfer of energy d)vibrations