20. What is the molecular formula of a compound that has a molecular weight of 240.0 grams?. A 5.00-gram sample contains 2.00 grams of carbon, 0.34 grams of
hydrogen, and 2.69 grams of oxygen.

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?