Ca^2+ (aq) + C2O4^2- (aq) ⇌ CaC2O4 (s) H2C2O4(aq) + H2O (l) ⇌H2O^3 (aq)+ HC2O4^- (aq)

Using the list below, complete the sentence. More precipitate formed in the test tube containing the

a. oxalic acid since oxalic acid is a strong electrolyte resulting in the concentration of the oxalate ion to be greater in this test tube.
b. potassium oxalate since potassium oxalate is a weak electrolyte and does not fully dissociate causing the concentration of the oxalate ion to be low.
c. oxalic acid since oxalic acid is a weak electrolyte and does not fully dissociate causing the concentration of the oxalate ion to be low.
d. potassium oxalate since potassium oxalate is a strong electrolyte resulting in the concentration of the oxalate ion to be greater in this test tube.
e. None of the above.

all eukaryotic cell have mitochondria : )

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.