Why do scientists use stirbars in the laboratory?

Which of the following amino acids have more than one asymmetric center? Check all that apply. Serine Isoleucine Proline Leucine Tryptophan Arginine Glutamate Threonine Lysine Tyrosine Glycine Alanine Asparagine Phenylalanine Histidine Valine

There are different types of bonds based on electronegativity. One bond type is known as non-polar covalent. Which choice below has this bond type? A. all of the compounds B. H2 C. H2O D. NaCl

A velocity vs time graph is a graph that shows the relationship between the velocity of an object over time___is plotted on the x-axis in seconds, and the___of the object is plotted on the y-axis in meters per second.

What would happen if you took a normal shaped bottle, sailed it at 1,000 feet, and then carried it up to 14,000 feet

Oxygen-18 is a naturally-occurring, stable isotope and is commonly used is scientific studies as a tracer. Using the periodic table, predict the number of electrons, neutrons, and protons in oxygen-18.

According to molecular orbital theory, all diatomic molecules with an even number of electrons will be diamagnetic. True or False?

Which of the following equilibria would be impacted by a change in pressure? Select the correct answer below: H2 (g) + I2 (g) →2HI (g) NO (g) + O3 (g) →NO2 (g) + O2 (g) 2SO3 (g) →2SO2 (g) + O2 (g) CO (g) + H2O (g) →CO2 (g) + H2

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed? 15.0 mL 66.

A chemical reaction that takes in heat is called: exothermic endothermic a phase change

Which of the following lines (of latitude or longitude) would represent by 180 longitude? South Pole Equator Prime meridian North Pole International date line