The solubility of potassium nitrate in water at 75°C is 155 g/100 g and at 20°C is 31 g/100 g. What mass of potassium nitrate must be taken to give 100 g of crystals when a
saturated solution at 75°C is cooled to 20°C?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

How does the viscosity of magma change as magma cools?

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.