1. 6m/ of 0.5MHCL is mixed with 15ml of 0.3MH2SO4 and 15ml of 0.2MHNO3 solutions.
Determine the normality of the acid mixture​

To apply in a gold the individual gold atoms are united to each other by means of a metallic bond. how would you use the gold block to determine the atomic radius of a gold atom?

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.