What will happen to the physical state of gases if pressure is increased and temperature is decreased?

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

How have the greenhouse gasses increased from the year 2000 to 2018