Water vapor is placed in a balloon and cooled to 50°F. As the water vapor cools it begins to condenses into liquid and the balloon deflates. Which statement best describes how the mass changes during this process? A. The mass increases.
B. The mass decreases.
C. The mass stays the same.
D. The mass increases when the liquid forms and the mass decreases when a solid forms.

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.

How to convert a density of 0.791g/cm3 to lb/ft3

Define a is a tiny pavket of energy