Which of the following would have an effect on an object's mass?

freezing the object

heating the object

changing the object's elevation

none of the above

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

How many atomic mass units are equal to 1.672×10−24 g of protons?