What does a negative change in entropy indicate? O A. The entropy of the system has increased.

O B. The system has become more random.

O C. The energy of the system has increased.

O D. The system has become more ordered.

Which is a characteristic of mixtures?

Stage in which a typical star has completely stopped fusion

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.