Diffusion is the movement of a substance

a. only through the lipid bilayer.

b. only in liquids.

c. only in air.

d. from an area of high concentration to an area of low concentration.

What is 350 kelvins on the celsius scale of temperature

In the skeletal system, these structures are responsible for connecting bones. a. ligaments and tendons b. cartilage and calcium c. tendons and muscles d. bones and ligaments

Which for the following is considered a weak base? A. Lithium hydroxide B. Sodium hydroxide C. Calcium hydroxide D. Aluminum hydroxide

What are the various adverse effects of chemistry

For the reaction 3 C 2H 2 (g) → C 6H 6 (l) at 25°C, the standard enthalpy change is - 631 kJ and the standard entropy change is - 430 J/K. Calculate the standard free energy change at 25°C

How many protons does one atom of sulfur have

Which shows the electron configuration for zinc (Zn) ? [Kr]5s24d10 [Kr]5s24d6 [Ar]4s23d9 [Ar]4s23d10

What is the oxidation number of chromium in the ionic compound ammonium dichromate (nh4) 2cr2o7?

Draw an ecosystem with 10 biotic and 5 abiotic factor

Which organism is responsible for cleanup in this ecosystem? coyote vulture prairie dog grasshopper or prairie grass