Herbicides:

1. are used to kill insects

2. can increase crop yields by killing weeds

3. supply plants with nutrients and minerals

4. are only used with hybrid plants

For the following SN2 reaction, draw the major organic product and select the correct (R) or (S) designation around the stereocenter carbon in the organic substrate and organic product. Include wedge/dash bonds and H on a stereocenter.

In a nuclear experiment a proton with kinetic energy 1.0 MeV moves in a circular path in a uniform magnetic field. What energy must ( a. an alpha particle (q = + 2e, m = 4.0 u) and ( b. a deuteron (q = + e, m = 2.

The molar mass of lif is 25.94 g/mol. how many moles of lif are present in 10.37 g?

Why is the linking of two monomers called dehydration synthesis?

Which kind of substance needs more energy to undergo an increase of 25 degrees Celsius something with a high or low specific heat?

Given the solubility, calculate the solubility product constant (ksp) of each salt at 25°c: (a) ag2so3, s = 4.6 * 10-3 g/l; (b) hg2i2, s = 1.5 * 10-7 g/l; (c) zn3 (po4) 2, s = 5.9 * 10-5 g/l.

Why does ionization energy tend to increase as you move across a period

Why does the rate of a reaction generally increase with increased temperature? (Choose all that apply) A. at higher temperatures, molecules are more likely to collide with each other in the correct orientation. B.

What is the wavelength of microwaves of 3.0x109 Hz frequency? c = 3.0x108 m/sec

When DNA is condensing into a chromosome, what protein is it wrapped around?