List the liquid mixtures from most sense to least dense using evidence and reasoning:

1) 1/2 cup of water
2) 1/2 cup of water + 2 tablespoons of salt
3) 1/2 cup of water + 2 tablespoons of sugar
4) 1/2 cup of water + 2 tablespoons of flour

Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?

How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3