18. A student recorded the temperature of a chemical reaction to be 85.0°C. At the end of the reaction the temperature dropped to 60.0°C. Convert the temperatures into Kelvin.
(You must show all your work to earn the full mark).
HELP ME I DONT UNDERSTAND ANYTHING

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

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

May someone me with these science questions