which quantity will always have a negative value? A) the total bond energy of the reactants in an endothermic reaction. B) the change in energy in a system during an endothermic reaction. C) the change in energy in a system during an exothermic reaction. D) the total bond energy of the products during an exothermic reaction

What are the concentrations of hydroxide and hydronium ions in a solution with a ph of 10.2?

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

In an effort to address concerns about global warming, a power plant in portland,oregon is designed to take all of its exhaust gases from its boilers and recycle the co2 using the solvay process to make sodium hydrogen carbonate. the reaction is shown below. nh3(g) + h2o(l) + co2(g) + nacl(aq) → nahco3(aq) + nh4cl(aq) how many liters each of nh3 and co2 (both at stp) would be consumed to produce 3.00 kg of sodium bicarbonate? the volume of both nh3 and co2 would be