In which situation would the products remain as separated atoms? The bonded atoms are more stable than the separated atoms.

The total potential energy of the reactants is greater than the total potential energy of the products.

The bonded atoms have more kinetic energy than the separated atoms.

The total potential energy of the separated atoms is less than the total potential energy if the atoms bonded together.

The excretory system,need answers for all: )

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)