What is the IUPAC name for the following compound? Group of answer choices 2-hydroxy-3,4-dimethylhexan-1-al (2S,3Z)-2-hydroxy-3,4-dimethylhex-3 -enal (2S,3E)-2-hydroxy-3,4-dimethylhex-3 -enal (2R,3E)-2-hydroxy-3,4-dimethylhex-3 -enal (2R,3Z)-2-hydroxy-3,4-dimethylhex-3 -enal

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

Which of the following describes the entropy change as a solution is made from a liquid and solid