Select the correct answer. what is a substance? a) a uniform mixture that can’t be separated b) a mixture that can be separated c)a single component that can’t be separated d)a single component that can be separated

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable