One way to make lemonade is to start by combining lemon juice and water, then adding sugar to suit your specific desire for sweet- ness. is this combination classified as a compound or a mixture? explain your answer.

The lemonade would be classified as a mixture. A mixture is a system that is made up of two or more of different substances or compounds which are being mixed but the components are not chemically combined. These can be in the form of solutions, colloids and suspensions. Other examples of this would be an aqueous solution of HCl, a mixture of sand and salt and orange juice. Compounds, on other other hand, are systems which are a combination of different elements which are chemically bonded to each other. Examples of this are NaCl in its pure form, calcium carbonate, sugar crystals and water.

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.