There are 6.02x10^23 atoms of hg in 200.6 grams of hg. calculate the mass of 4.350x10^22 atoms of hg

Amixture with the same composition throughout is!

Which of the following units is not an official si unit

Pastoral farming is best described as a. a method of raising livestock and moving herds b. an african method of agriculture c. a method of cultivating crops on poor soils d. a common method of desert farming select the best answer from the choices provided a b c d