A sealed cylinder with a movable piston contains exactly 1 mole of an ideal gas at 25°C. The pressure of the gas is held constant at 1 bar. When the temperature of the cylinder is doubled one of the following describes what happens: a. The pressure halves​
b. The pressure doubles and the number of moles remains the same
c. The number of moles halves and the pressure doubles
d. The number of moles remains the same and the pressure remains constant

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.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

the answers are

c and c