The decayed organic material that gives soil its dark brown or black color is called

A) clay.

B) humus.

Eliminate

C) loam.

D) silt.

Explain why raising the temperature of a liquid would speed up diffusion

Choose the selection which correctly identifies the forces which must be overcome to convert SF6 from a liquid to a gas. a) Only London dispersion forces must be overcome. b) Only dipole-dipole forces must be overcome.

Which of the following are considered strong bases? That is, they are capable of doing E2 reactions. (choose all that apply) Hydroxide, OH- Ammonia, NH3 Water, H20 ОMethanol, Снзон Methoxide, CH30- Cyanide, CN- Amide, NH2-

Why is methane, CH4, a nonpolar compound? It does not have covalent bonds. Each covalent H bond is nonpolar. The nonpolar bonds are distributed evenly around the carbon atom. It forms a symmetrical planar triangle.

Which of the following reactions is possible according to Dalton's atomic theory? View Available Hint (s) Which of the following reactions is possible according to Dalton's atomic theory? N2→O2 N2+O2→2NO CO2→NO2 H2O→H2S

Which of the following is a mixture? alcohol water mercury ink

A gas occupies 3.5 L at standard pressure. Find the volume of the gas when the pressure is 1.5 atm.

What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?

What do we call the process by which cells obtain the energy that they need?

Which of the following statements describes how the periodic table is organized? 1. The elements are organized alphabetically. 2. The elements are organized by their size. 3. The elements are organized by the date they were discovered. 4.