Which of these statements describes this mathematical equation?
p. vi-k
t1
the final pressure of a gas is directly proportional to volume and temperature change.
the final pressure of a gas is directly proportional to volume change and inversely proportional to temperature change.
the final pressure of a gas is inversely proportional to the volume change and directly proportional to temperature change.
none of the above

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

idk what the question is about

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.