C21H44 is a wax that burns producing carbon dioxide and water by the equation below). How many grams of oxygen would be required to
completely burn 20.6 g of C21H44 wax? *
2C21 H44 + 6402 – > 42C02 + 44H20
O 4.44 g
071.1 g
O 1429
O 210909

Non renewable resources like petroleum eventually

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.