Lead can be dangerous when present at just 1ppb (part per billion) in drinking water. An older apartment building finds that 0.1 g of lead has dissolved into the old 1000 L water heater. Is the water safe to drink? Show your work! ASAP WITH EXPLANATION PLEASE

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o

How do limiting factors most affect population size? ostop population growthrestrict population growthincrease population sizeresult in positive impactso