Se tiene una muestra de orina de un paciente sano que mantiene una dieta balanceada y evita los alimentos chatarras ¿cual sera el ph de su orina.
Datos
Formula.
(H+) =0.00000082*10-7
pH=-log(H+)

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)