Balloon is filled with helium. At 31 °C pressure is 791 torr and volume is 3.5L. What will be pressure if the balloon rises, so that temperature drops to -5 °C
and volume increases to 5.OL?

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 description best characterization the motion of particles in a solid

How many grams of iron can be made from 16.5 grams of fe2o3