Draw the major organic product from reaction of 1-butyne with 1 equiv br2. specify stereochemistry when it is relevant. in cases where there is more than one answer, just draw one. do not draw inorganic by-products. if no reaction occurs, draw the organic starting material.

An engineering team designs a new rocket that is faster and lighter than any other model being produced. however, the materials end up being so expensive that no company can afford to buy them. which step of the engineering process should have addressed this problem? a. know the background. b. evaluate the results. c. identify a need. d. do the work.

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness