Define a system you interact with every day. Is the system open, closed, or isolated? How do matter and energy flow into, out of, or within the system?

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal. a.added more engine powerb. activated a connection to the pedalc. stalled the engined. released a connection to the pedal

Calcium chloride +gold(1) oxide—>

How are the terms group and period used on the periodic table