Why does a newly opened can of warm soda have less carbonation than a newly opened can of cold soda? a. at a constant pressure, gases  are less soluble in liquids at higher temperatures. b. at a constant pressure, gases are more soluble in liquids at higher temperatures. c. liquids expand at higher temperatures, leaving less room for gases. d. liquids contract at higher temperatures, making more room for gases.

Answer is: A.At a constant pressure, gases are less soluble in liquids at higher temperatures. Carbonated drinks lose their fizz at higher temperatures (gases move faster anf have higher energy) and when the carbonated soda is colder (gases move slowe and have less energy), the dissolved carbon dioxide (CO₂) is more soluble and fizzes more when opened.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.