Which of the following statement(s) about energy and phase is/are correct? Select all that apply.

Choose one or more:
A.
While only one phase is present, adding or removing energy changes PE but not KE.
B.
During a phase change, adding or removing energy changes PE but not KE.
C.
While only one phase is present, adding or removing energy changes KE but not PE.
D.
During a phase change, adding or removing energy changes KE but not PE.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

What are the first three quantum numbers for the electrons located in subshell 2s?

How many grams of phosphorus are contained in 5.09 moles of phosphorus?