The compound C¹⁰H²²O² (1, 10-decanediol) is used in the fragrance, Essence. It contains 120.10 g of carbon, 22.22 g of hydrogen and 32.00 g of oxygen. What is the percent of each of those components in the compound?

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

How might this scientific phenomena be explained? a paper clip floats on water.