Fill in the blanks: a substance that undergoes a change will always result in something new that has properties than what it started out as. A- physical and different. b- physical and same. C-chemical and different. D chemical and same

__can be defined as which velocity changes

How many molecules are found in 1.32 mol of nacl?

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit