5. When (R)-4-bromohept-2-yne is treated with excess H2 in the presence of Pd/C, the product is optically inactive. When (R)-4-bromohex-2-yne is treated in the same conditions, the product is optically active. Explain this observation.

This drawing shows a human body system. what is the primary function of this body system?

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml