A substance has a molar mass of 60 g/mol with 40.0 percent carbon, 6.7 percent hydrogen, and 53.3 percent oxygen. What is its empirical formula? 1. C2H3O2 2. C2H4O2 3. C2HO 4. C3H2O2 5. CH2O 6. C3H3O2 7. C2H2O3

it should be all of them because it asks if you included all of those in your answer

explanation:

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !