The fuel used in many disposable lighters is liquid butane, c4h10. how many carbon atoms are in 2.00 g of butane?

The answer to your question is: 8.31 x 10 ²² atoms

Explanation:

butane C₄H₁₀  

carbon atoms in 2 g of butane

MW C₄H₁₀ = (4 x 12) + (1 x10) = 48 + 10 = 58 g

                        58 g of butane  48 g of C

                          2 g of butane      x

                     x = (2 x 48) / 58 = 1.655 g of C

                         1 mol C 12 g

                          x            1.655 g

                         x = (1.655 x 1) / 12 = 0.14 mol of C

                     1 mol of C 6.023 x 10 ²³ atoms

                    0.14 mol of C     x

                        x = ( 0.14 x 6.023 x 10 ²³) / 1

                       x = 8.31 x 10 ²² atoms

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.