A gas at 200 K occupies a volume of 350 mL. What temperature is needed to increase the volume to 500 mL?

Me i dont know what to do! 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.

Which element is the least metallic between cadmium, silver, zinc, or iron?

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0