The mass of a solid cube is 635 g, and each edge has a length of 6.3 cm.
Find the density of the cube.
Answer in units of kg/m3
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Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

How many moles are in 7.2 x 10^23 carbon molecules?

Which of the following describes qualitative data? a) recording the temperature of a solid as it is warmed. b) noting the color of a solution as it is heated. c) measuring the volume of an object by water displacement. d) taking the mass of an object using a balance.