What are compounds?

a. pure substances

b. heterogeneous mixture

c. homogeneous mixture

What type of scientific model does the flow chart represent? (a chart of the scientific process) a. conceptual b. mathematical c. physical d. virtual

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.