4 molecules of ethylene (C2H4) react with 2 molecules of oxygen (O2) to produce some amount of acetaldehyde (C2H4O).

Which of these best describes the scientific process

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.

What is a difference between a mixture of elements and a mixture of compounds