3. A 6.2L balloon at 55" C and 815 mmHg is hauled up to the top of K2, the world's second tallestpeak. The conditions at the summit are 65" C and 350. mmHg. What is the volume of the balloon at the summit of K2?

a electronegativity decreases beacuse the size of nucleus is bigger.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.