6. Which of the following is not a characteristic of electromagnetic light waves? O A. They can be reflected and refracted.
O B. They travel at the same speed through any one material.
O C. They can't travel through a vacuum.
O D. They obey the formula velocity = wavelength x frequency

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?