Which of the following is a single replacement reaction? Ca(OH)2 + H2SO4 → CaSO4 + 2H2O CH4 + 2O2 → CO2 + 2H2O H2O+ CO2 → H2CO3 Fe + 3NaBr → FeBr3 + 3Na

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a