chemical equation for 3-nitroacetophenone using tin and hydrochloric acid
Which one of the following cells (Ch. 4) has the greatest surface-to-volume ratio? a. bacterium b. human red blood cell c. round, starch-storing cell in a potato d. frog egg e. ostrich egg
A 3.8 kg object starting from rest falls through a viscous medium and experiences a resistive force R = −b v, where v is the velocity of the object.The acceleration of gravity is 9.8 m/s2 .If the object’s speed reaches one-half its ter- minal speed in 5.018 s, determine the terminal speed.Answer in units of […]
http://session.masteringphysics.com/problemAsset/1169211/1/jfk.Figure.20.P47.jpgPart A:What is the force on the 1.0nC charge in the figure? Give the magnitude. Express your answer using two significant figures.Part B:Give the direcion. Express your answer using two significant figures.
Need help with this question: Discuss two types of tectonic changes that could produce deserts in previously humid environments.
QUESTIONSBefore spectroscopy was invented, Korner’s absolute method was used to determine whether a disubstituted benzene derivative was the ortho, meta, or para isomer. Korner’s method involves adding a third group (often a nitro group) and determining how many isomers are formed. A turn-of-the-century chemist isolated an aromatic compound of molecular formula C6H4Br2. He carefully nitrated […]
A flask contains 0.160 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
First year biology course. Section on genomes and nucleic acid. I am asked to: Identify the regions of DNA that can be used by proteins to recognize specific DNA sequences.
Due to the lack of an enzyme to break down lipids, excess accumulation of lipids in the brain leads to a human disease called Tay Sachs syndrome. Which organelle is likely to be the one that lacks the proper enzyme needed for lipid breakdown? -lysosome-tonoplast-mitochondrion-Golgi apparatus-peroxisome
What is the acceleration of a 37 kg block of cement when pulled sideways with a net force of 204 N
