Match these items.
phosgene
1. a halogenated gas that may damage the ozone layer
2. world war i poison gas
benzene
3. a typical reaction of alkenes
addition
4. insecticide
freon
5. aromatic molecule
ddt

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

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.