Which of the following has to remain constant to allow you to use the combined gas law for calculations? ОА.
pressure
OB.
volume
Ос.
temperature
OD
amount of gas

Temperature and pressure

12 is probably the typical age for a first kiss but i think its to young.

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts