Which of the following is a heterogeneous mixture?
a. water in a swimming pool
b. sugar water
c. a jar of mixed nuts
d. stainless steel

Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b.slope c.benchmark d. index contour

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Light waves can move through , but they travel fastest when they move through a(n) .