Which of the following describes volume?

a. the number of particles or amount of matter
b. amount of mass contained in a certain space
c. how fast the particles of matter are moving
d. the amount of space that matter occupies

Which statement describes the appearance of a temperature-vs.-time graph? a horizontal line shows that the temperature increases at a constant rate over time. a vertical line shows that the temperature decreases at a constant rate over time. horizontal lines where the temperature is constant during phase changes connect upward-sloping lines where the temperature increases. horizontal lines where the temperature increases are connected by upward-sloping lines where the temperature is constant for each phase.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Salt in oceans comes from and of rocks