How many grams of oxygen are required to react with 55.0g of octane (C8H18)?

Which of the following units is not an official si unit? mole liter kilogram ampere

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

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm